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Firmness refers to how firm and soft a mattress feels under pressure. This is a tactile experience given by the mattress and is subjective. The firmness will vary depending on personal preference, weight, and sleeping position. But, the mattress industry still has a set of standards for measuring firmness. We can combine with weight, age, and sleeping position—to create a mattress firmness guide for you. Then let’s get started!   Firmness Grade The mattress industry rates beds on a softness-to-firmness scale from 1 to 10. A 1 is the softest, like lying on a cloud, while a 10 is the firmest, like lying on a hard board.. Next, let’s look at each level separately.    1. Extremely Soft (1) Extremely soft and almost unsupportive, lying on it is like sinking into a cloud. This mattress is rare and not recommended. It sinks too much, doesn’t support well, and can lead to poor sleep and discomfort.    2. Ultra Soft (2) Slightly more realistic than Extremely Soft, but still very soft, not enough support. It’s not recommended because it can cause too much sinking, even for those who like very soft mattresses.    3. Very Soft (3) Very soft and more supportive, but still has a noticeable sinking feel. Ideal for side sleepers, especially those who like to be wrapped in their mattress. Typically made from memory foam, known for its deep stress-relieving properties.    4. Soft (4) Soft but starting to provide more balanced support with less excess sinking. Ideal for those who like a soft mattress and need some support, and suitable for side and back sleepers.    5. Medium (5) Balanced softness and support, suitable for all sleeping positions. Especially for side, back and stomach sleepers, it provides good comfort and support.    6. Medium Firm (6-6.5) The most common firmness level on the market, balancing pressure relief and support. Suitable for various sleeping positions, especially combination sleepers. Can be made entirely of foam or a combination of foam and coils.    7. Slightly Firm (7) Stronger support provides extra lift and reduces the feeling of sinking. Suitable for back, stomach and combination sleepers and provides good spinal support.    8. Firm (8) Provides very firm support with no body contouring or "hugging" feel. Great for back and stomach sleepers, and for those who like a traditional firm mattress.    9. Very Firm (9) Very sturdy and offers great resistance with little to no sinking or hugging. Ideal for heavier sleepers, or those who must extreme support. Most people may find this firmness too firm.    10. Ultra Firm (10) The most solid support without any softness or sinking. Ideal for people with special medical needs requiring extreme support. It’s rare and not recommended for most people because it offers little pressure relief.   Common mattress firmness and brands Soft Mattresses Soft mattresses typically have a firmness rating between 3 and 5 out of 10. They usually have a cushioning layer on top, like a quilted pillow top or thick memory foam. This creates a deep, body-contouring feel that relieves pressure. On a soft mattress, you will feel like your body is "sinking in" rather than "floating". Side sleepers or those needing extra comfort for their shoulders, hips, and lower back often prefer softer mattresses. Some popular examples of soft mattresses include Tempurpedic, Sealy, Serta, and Helix mattresses. Medium Firm Mattresses  A medium-firm mattress typically has a firmness rating of 5-6.5 out of 10. These mattresses usually have a soft foam top layer and a firm, high-density base. These offers both pressure relief and support, making it popular for many sleepers. On a medium-firm mattress, you might sink slightly but generally feel more lifted. This makes it a great choice for combination or back sleepers who need extra mobility. We recommend these brands: Ablyea, Casper, Nectar, Purple, DreamCloud, Saatva, and Puffy Firm Mattresses  Firm mattresses typically have a firmness rating of 7-8 out of 10. The comfort layers of these mattresses rarely feature soft materials. Instead, they insert a thin layer of soft foam over high-density foam or springs. Thus, a firm mattress can provide a high level of support. On a firm mattress, every part of your body should receive enough push to lift directly onto the top of the bed. Stomach sleepers and heavier people may appreciate the extra support these mattresses bring. Some of the firm mattresses include Tempurpedic, Sealy, Helix and Nectar mattresses.   What is the Best Firmness for You? There is no absolute answer to this question, the one that suits you best is the best. Some soft mattresses can be a disaster for people with back pain. So, we should choose a mattress, based on our sleeping position, weight, physical condition. To get a good night's sleep. Sleeping Positions   Best Firmness for Back Sleepers: 5-6.5 (medium firm) When you sleep on your back, your body weight is spread out evenly. You need a mattress that supports your spine's natural curve. A medium-firm mattress can provide good support and avoid excessive sinking. Best Firmness for Side Sleepers: 3-6 (soft) When you sleep on your side, your weight is concentrated on smaller areas, like your shoulders and hips. This puts more pressure on those spots. A softer mattress can disperse these pressures, providing more cushioning and comfort. And the soft mattress can make the shoulders and hips to sink slightly, helping the spine maintain a natural S shape. This reduces stress on your back and neck, helping to reduce pain and discomfort. Best Firmness for Stomach Sleepers:7-8 (firm) When sleeping on your stomach, most of the body's weight is concentrated in the abdominal and chest areas. A firmer mattress can stop these areas from sinking too much and help keep your spine aligned. Best Firmness for Combination Sleepers: 5-6.5 (medium firm) A medium-firm mattress balances softness and support. It gives side sleepers enough cushioning, provides support for back and stomach sleepers. Whether you sleep on your side, back, or stomach, a medium-firm mattress can adapt and support different body parts. Weight Best Firmness for Lightweight (under 120 pounds): 3-6 (soft) Those weigh less will get better pressure distribution on a softer mattress, especially for areas like shoulders and hips. Best Firmness for Medium Weight (120-230 pounds): 5-6.5 (medium firm): A medium-firm mattress balances support and comfort. Making it a good choice for most sleepers within this weight range. Best Firmness for Heavy Weight (over 230 pounds): 7-9 (firm) Heavy sleepers won't sink too much on a firm mattress. It helps keep the spine aligned and provides good support. Special Needs Best Firmness for Back Pain: 5-7 (medium to firm) A medium-firm mattress offers good support, helping keep your spine aligned, reducing pressure on your back and waist. Best Firmness for Arthritis or Joint Pain: 3-6 (soft to medium firm) A softer mattress can relieve joint pressure and reduce joint pain. Best Firmness for Breathing Issues or Acid Reflux: 5-7 (medium to firm) A medium to firm mattress provides good support. It keeps your upper body elevated, which helps with breathing problems and acid reflux. How to Tell if Your Mattress is Too Firm or Too Soft A mattress that is too soft will sink too much, leaving you feeling unsupported. This can lead to improper alignment of the spine. If you wake up with lower back, shoulder, and/or neck pain, your mattress may be too soft. If your mattress is too firm and doesn't fit your body well, you might wake up with back, neck, and shoulder pain. Note: Sleeping on a mattress that is too soft or too hard for a long time is not good for your health. Uncomfortable mattresses need to be replaced promptly!   The Difference between Firmness and Support Firmness Firmness refers to the comfort of the mattress surface, that is, how firm or soft it feels when you lie on it. Firmness is usually determined by a mattress's comfort layers, such as memory foam, latex, or a quilted top layer. Support Support means the mattress keeps your body aligned and prevents sagging. It also helps maintain spine alignment. It usually depends on the mattress’s core structure, like springs, high-density foam, or pocketed coils. Good support spreads your body weight evenly and reduces pressure points. It also provides a stable foundation for sleep. Firmness and support can exist independently of each other. For example, a high-quality firm mattress with high-density memory foam, can be both soft and supportive. It provides comfort while maintaining good support and spine alignment. Of course, a low-quality firm mattress is very firm but offers no support. It feels like lying on concrete and can throw your spine out of alignment. Finally, the firmness is a personal feeling. You can choose the best firmness based on your preferences, sleeping position, weight, and other factors. I hope this guide helps you find the right firmness for you!

Sleeping positions include sleeping on your back, stomach, or side. Side sleeping can be further divided into sleeping on your left or right side.   According to the WHO, most people spend one-third of their lives sleeping. A good night's sleep allows your body to repair itself and be full of energy for the next day. Not enough sleep can make people feel tired and irritable. Many factors affect sleep, including physical health, emotions, medications, and your bedroom environment. Mattresses, bedding, and sleeping positions also play a role. Sleeping position greatly affects our sleep. Sleeping on back can make snoring worse. Sleeping on side can help pregnant women feel more comfortable. Because it can reduce pressure on their body.    What's the best sleeping position? There isn’t one best sleeping position. But, different positions can help with different issues. The best sleeping position for you depends on your preferences and physical condition. It also depends on your mattress and whether you sleep alone.   What are the sleeping positions? Sleeping positions include back sleeping, stomach sleeping, side sleeping, and a mix of these positions. Side sleeping positions are divided into left side sleeping and right side sleeping. According to research, side sleeping is the most common position. About 60% of people prefer to sleep on their side. About 15% of people prefer to sleep on their back. About 7% of people prefer sleeping on their stomach. Mixed sleepers don’t stick to one position. They may change positions throughout the night. The proportion of this group of people is around 18%.   Pros and Cons of Side Sleeping: According to surveys, side sleeping is the most common sleeping position. Sleeping on your side has many benefits. Sleeping on your side can help reduce neck fat and eye tissue pressure on the respiratory tract. This can keep your breathing smooth. Sleeping on your side puts less pressure on your spine and can effectively relieve back pain. Sleeping on your side can help relieve gastroesophageal reflux (GERD) symptoms, such as heartburn and reflux. Sleeping on your left side is especially beneficial. Elevating the head of the bed can further reduce these symptoms. You can use a pillow or an adjustable bed to elevate your head.   Of course, sleeping on your side means that the contact area between your body and the mattress is smaller. This can increase pressure on your shoulders and hips. We need a mattress that is soft and supportive. See my guide to the best mattresses for side sleepers. Sleeping on your side for a long time will compress the facial skin and cause sleep wrinkles. And sleeping on one side for a long time will cause facial asymmetry. If you are a woman, it may also cause breast asymmetry. Thus, when sleeping on your side, you can alternate between left and right. Placing a pillow between your legs can help align your spine and increase comfort.  Pros： Can relieve sleep apnea symptoms Can prevent spinal problems and back pain May reduce acid reflux symptoms May help reduce snoring   Cons： You may feel pressure in your shoulders or hips The pressure on your face from sleeping on your side may cause wrinkles Sleeping on one side for a long time can cause facial asymmetry   Suitable for: Pregnant women, people who snore, people with back pain, people prone to acid reflux   Pros and Cons of Sleeping on Your Back: Sleeping on your back is a more common sleeping position. The contact area between the body and the mattress is large. This helps stretch and relax the muscles throughout the body. The large contact area helps with blood circulation throughout the body. It also relieves pressure on the cervical spine and reduces back pain. Of course, back sleepers will need a medium-firm mattress. Only in this way can it fit the body, provide effective support and align the spine. At the same time, the pillow also needs to be of a certain height to ensure the normal curve of the neck. Sleeping on your back avoids compressing the facial skin. This can help reduce the formation of skin wrinkles.   When sleeping on your back, gravity affects the tongue and other pharyngeal tissues. This can lead to difficulty breathing or even apnea. Snoring can also become more severe. If you also suffer from acid reflux, lying down may increase heartburn symptoms.   Pros： Supports the natural alignment of the spine May help relieve back pain No compression wrinkles   Cons： More likely to snore May worsen sleep apnea symptoms Long-term worsening of acid reflux symptoms     Suitable for: People with back pain Not suitable for: Pregnant women, people with acid reflux, people who are prone to snoring   Pros and Cons of Sleeping on Your Stomach: Sleeping on your stomach is the least recommended of these sleeping positions. When sleeping on your stomach, your face is compressed and deformed. This can cause sleep wrinkles. And the pressure on the eyeball will affect the vision of the eye. To breathe, the head turns to one side, the neck muscles twist, and the spine loses alignment. It’s easy to wake up the next day with back pain and neck soreness. For drunk people and babies, sleeping on their stomachs can easily cause suffocation.   But it is not useless. When sleeping on your stomach, the pharyngeal tissue does not block the breathing passage. This can reduce snoring and lessen the risk of sleep apnea symptoms.   Pros： Can reduce symptoms of sleep apnea Can help relieve snoring   Cons： Compression wrinkles are more likely to appear on the face May worsen back and neck pain Affects eye vision.   Suitable for: People who snore, people with sleep apnea symptoms Not suitable for: People with back pain, drunk people and babies   Best Sleeping Position for Back Pain: Both sleeping on your back and side may help relieve back pain. Sleeping on your side helps protect your spine from pain and discomfort. This is because you don’t put pressure on your back and lumbar area. Sleeping on your back on a medium-firm mattress can help relieve low back pain. This is because your spine stays in a neutral position. When you sleep on your back, your body has more contact with the mattress and your body weight is dispersed. Be freed.   Your mattress can also affect your sleep. Research shows that a medium-firm, supportive mattress can help relieve low back pain. It can also reduce pain while lying in bed. Additionally, it may lessen pain when you wake up.   Best Sleeping Position for Pregnant Women: Sleeping on your left side. Due to the position of the rectum and other organs, the uterus is often tilted to the right. When pregnant women lie on their left side, it can shift the uterus to the left. This helps reduce tension on uterine blood vessels and increases blood flow to the placenta. As a result, it improves the oxygen supply to the fetus. Of course, if sleeping on your left side is uncomfortable, you can try switching sides. Alternating between your left and right sides can help. This is the recommended sleeping position after 28 weeks of pregnancy. By this time, the uterus is already very large. There are no sleeping position recommendations during the first trimester.   Lying on your back is not good for the health of the fetus and may increase the risk of miscarriage. When you lie on your back, the enlarged uterus can compress the aorta in the abdomen. This affects blood supply to your body and reduces the blood supply to the fetus. As a result, the fetus may be at risk of hypoxia.   Best Sleeping Position for Couples: There is no best sleeping position for couples. Couples in the love stage will hug each other to sleep to increase intimacy. After this period, couples often focus more on sleep quality. As a result, it's common for couples to sleep back to back.   So what should couples consider when sleeping? Motion Isolation: When one partner tosses and turns at night or gets up frequently, it can disturb the other partner. Thus, choosing a mattress that reduces motion transfer is important. Using individually wrapped spring coils can effectively reduce movement disturbances. This helps cut interference with the other partner’s sleep. Snoring: When a person snores, his partner will be disturbed. Now, you can sleep on your side or stomach to reduce the impact of snoring on your partner.   Best Sleeping Position for People with Obesity: Sleeping on your side. It is not suitable for obese people to sleep on their backs. When they sleep on their backs, the pharyngeal tissue can compress their breathing. This can easily worsen snoring and cause breathing difficulties. Due to weight reasons, obese people are not suitable for sleeping on their stomachs. It can easily compress the heart and affect blood circulation in the body.   Best Sleeping Position for Snorers: Sleeping on your side. Mainly because this posture helps keep the airway open. When you lie on your back, your tongue and soft palate are more likely to fall back into your throat. This can partially block your airway and cause snoring. When sleeping on your side, gravity pulls the tongue and soft palate to one side. This reduces obstruction to the respiratory tract and decreases pressure on the throat. As a result, air passes more smoothly, which effectively reduces snoring.   Generally speaking, sleeping on your side is the most advantageous position. In contrast, sleeping on your stomach is the least recommended. But sleeping position is a personal habit and is highly personal. If you really don’t like a sleeping position, forcing yourself to use it can be detrimental. It will negatively impact your sleep. So do we have any tips to increase sleep comfort? The answer is: yes! Sleeping on your side: Place a pillow in front of your legs. This will make your sleep more comfortable. Sleeping on your back: Place a pillow under your knees to keep your spine in better alignment.

When buying a mattress, we tend to consider many things, such as price, material, firmness, etc. but what about thickness? Thickness, also known as height, is an important factor when buying a mattress. A good mattress is generally between 8 inches and 14 inches. It should have a comfort layer of 2-3 inches and a support layer of 5-6 inches. Our guide will walk you through picking the perfect mattress thickness.   Why is mattress thickness important? The thickness of your mattress really matters because it affects how comfy and supported you feel while you sleep. Plus, it’s a big factor in how long your mattress will last. Here’s why:   Support: Thicker mattresses typically contain more layers of material, such as memory foam, or springs. These layers provide better support and help maintain the spine's natural alignment. Especially for side sleepers or heavier people, a thicker mattress can prevent excessive sinking. It also reduces pressure points and avoids overtaxing certain areas of the body.  Comfort: The thickness of a mattress can increase comfort. Thicker mattresses are generally softer than thinner mattresses. They provide deeper cushioning, allowing the body to relax and recover better during the night. Durability: Thicker mattresses are generally more durable. They have more material to resist wear and deformation. Thicker mattresses are less likely to dent or sag over time, extending the life of the mattress. Adaptability: The thickness of a mattress affects its ability to adapt to different sleeping positions and body types. Thicker mattresses generally provide better adaptation to various body shapes and sleeping positions. They offer even support and enhanced comfort.   Mattress Thickness Chart You can refer to the common thickness chart in the mattress market: 2 to 5 inches Low Best for babies or rollaway bed 5 to 8 inches Slim Best for kids, guest room 8 to 12 inches Standard Best for most adults 12 to 16 inches Thick/Deep Best for big-bodied adults couples, side sleepers Over 16 inches Extra thick/Extra deep Best for big-bodied adults, large bedroom   2-5 inches is ideal for a crib as it provides the necessary safety and support. Babies weigh less and thus do not need a thick mattress for support. Thinner mattresses are generally firmer. They help maintain the natural alignment of a baby's spine and promote healthy development. Low profile mattresses are also great for rollaway beds because they are lightweight and easy to store and carry. 5-8 inches have an extra comfort layer compared to 2-5 inches. Not overly soft like adult mattresses. It won't be too firm either. Allowing children to have a comfortable sleeping experience. It can also provide a flexible sleeping experience for guest rooms. They’re affordable while maintaining comfort. This makes them a perfect option for rooms that aren’t used often. Mattresses of this thickness are relatively lightweight and easy to manage. This makes it simple to change sheets or move the mattress regularly. A thickness of 8-12 inches is considered suitable for most sleepers. It provides a balanced combination of comfort and support. Almost all mattress brands are almost all in this range in thickness. 12-16 inches are ideal for plus-sized people, couples, and side sleepers. This thickness provides deeper support and better pressure relief. For plus-sized people, a thick mattress can effectively prevent sagging. It provides even support and protects spinal health. When couples share space on the bed, the multi-layer structure of thick mattresses helps reduce interference from one partner turning over. This design minimizes disturbances between partners. It ensures a stable sleeping environment for each person. For side sleepers, a thicker mattress can better cushion pressure points on the shoulders and hips. This helps maintain the natural alignment of the spine and improves comfort. Over 16 inches are suitable for big-bodied adults, larger families, and larger bedrooms. The extra thickness provides excellent support and durability, effectively supporting greater body weight. Make sure your spine maintains healthy alignment. For larger families, extra-thick mattresses provide a more spacious comfort area. This allows many children or family members to share the bed without feeling crowded. In large bedrooms, mattresses over 16 inches are more coordinated with the proportions of the room. They also bring a luxurious living experience, enhancing both the comfort and beauty of the bedroom.   What determines mattress thickness? The thickness of the mattress depends on the thickness of each layer. Mattresses are generally divided into comfort layer, transition layer and support layer. Comfort layer: Comfort layers can be made from materials such as memory foam, latex, or gel foam. These layers are designed to relieve pressure points and enhance sleep comfort. Transition layer: This layer sits between the comfort and support layers and is usually made from denser foam or microsprings. It provides extra support and cushioning to prevent sinking in too deeply. Support layer: The design of the support layer directly affects the firmness, support and durability of the mattress. Common materials include high-density foam, spring systems (such as innersprings or pocket springs), and more. This layer ensures that the mattress effectively supports the body's weight and maintains the spine's natural alignment. It helps prevent excessive sagging or deformation.   A comfortable and supportive mattress has a thickness range for each layer, the comfort layer is 20%-30%, the support layer is 50%-60%. For example, when buying a 10-inch mattress, make sure it has about 2-3 inches of comfort layer and 5-6 inches of support layer.   How to choose the right mattress thickness? Sleeping Position: Sleeping position is a key factor when choosing the right mattress thickness. Different sleeping positions require varying levels of support and comfort from the mattress.   Sleeping on your back Suitable thickness: 10 to 12 inches When sleeping on your back, your spine needs to be evenly supported to maintain its natural alignment. Moderate thickness can provide sufficient support and comfort. It prevents excessive sagging in the middle spine and lower back. A mattress that is too thick may cause your body to sink too far into it. Conversely, a mattress that is too thin may not provide enough support.   Sleeping on your side Suitable thickness: 12-14 inches Side sleepers need more cushioning to relieve pressure points on their shoulders and hips while maintaining spine alignment. Thicker mattresses offer a deeper layer of comfort, which helps to ease these pressure points. They also provide enough support to prevent spinal curvature. This combination ensures better comfort for side sleepers. For heavier side sleepers, a thicker mattress can provide better support and comfort.   Sleeping on your stomach Suitable thickness: 10 inches Stomach sleepers often need a thinner mattress to avoid excessive softness. A mattress that is too soft can cause the waist and abdomen to sink, which may negatively impact spinal alignment. Moderate thickness can provide adequate support while avoiding excessive sag. Thinner mattresses generally provide firmer support and help maintain the spine's natural position.   Mixed sleeping positions Suitable thickness: 12 inches Mixed sleepers may change positions during sleep. Thus, they need a mattress with moderate thickness to accommodate different sleeping positions. A mattress of moderate thickness can provide adequate support and comfort. It also adapts well to different sleeping positions.   Body Type: Body type is also a factor that needs attention. Different body types have different needs for mattress support and comfort.   Light weight (weighing less than 130 pounds) Suitable thickness: 8-10 inches Lighter people don't need too much mattress sag. Thinner mattresses usually provide adequate support and comfort. A thinner mattress avoids excessive sinking while ensuring adequate support. It helps the support layer effectively maintain the natural alignment of the spine.   Average weight (130-230 pounds) Suitable thickness: 10-12 inches People of average weight need more support and comfort, especially in the combination of comfort and support layers. A thickness of 10 to 12 inches provides moderate cushioning and support. This helps prevent excessive body sag while maintaining the natural alignment of the spine. This thickness is suitable for meeting the sleeping needs of most medium-weight people.   Heavy weight (weighing more than 230 pounds) Suitable thickness: 12-14 inches People with heavy weights need deeper layers of support and comfort to prevent excessive sagging. This is particularly important for the support layers of the mattress. Thicker mattresses provide firmer support, which prevents your body from sinking too deeply into the mattress. This helps maintain healthy spine alignment. Thicker mattresses also increase comfort and reduce pressure points. This makes them suitable for heavier people.   Sleeping Alone? If you're not sleeping alone but with a partner, children, or pets, choose a 10- to 12-inch mattress. Thicker mattresses generally provide more support. A thick mattress can better isolate the movement of both parties. This reduces interference when turning over and moving. This helps ensure that each person has a stable sleeping environment without being disturbed by the other's movements.   Bed Base Height: Combined with ergonomics, the height of the bed frame plus mattress should generally not exceed 25 inches. Of course, this doesn't mean that if your bed frame is 5 inches, you have to buy a 20-inch mattress. After all, everyone’s height and personal preferences are different. Here are our recommendations for combining ergonomics and the aesthetics of your bed:   Low bed base (usually 6-10 inches) Suitable for mattress thickness: 8 to 10 inches The combination of a lower bed frame and a thin mattress can maintain the coordinated proportions of the bed. This ensures convenience when getting in and out of bed while creating a simple and modern visual effect. Thinner mattresses can reduce the height of the bed. This makes it easier for children, the elderly, or people with limited mobility to get in and out of bed.   Medium height bed base (10-14 inches) Suitable for mattress thickness: 10 to 12 inches Pairing a medium-height bed frame with a medium-thick mattress ensures comfort and convenience. It also keeps the bed at a practical height, neither too high nor too low. This combination balances the bed’s height, making it easier to get in and out while preserving its aesthetic appeal.   High bed base (over 14 inches) Suitable for mattress thickness: 10 to 14 inches A taller bed frame paired with a thicker mattress can increase the height of the bed, making it more luxurious and easier to get in and out of. A thicker mattress not only provides extra support but also increases comfort while reducing wear and tear on your bed. This configuration is especially suitable for users who need more support. It is also ideal for those who prefer a high bed to enhance the sleeping experience.   Pros and cons of thick mattresses A thicker mattress means a thicker comfort layer. Many people may think that they should choose a thicker mattress because it is more comfortable. But, this may not be the case. It’s not that thicker mattresses are better! Pros: Thick mattresses typically offer a deeper comfort layer, which provides better pressure relief. This added depth also delivers greater softness and support. This is especially important for side sleepers. A thicker mattress can better relieve pressure on your shoulders and hips, reducing discomfort. Thick mattresses have thicker support layers to provide stronger support. This is especially important for heavier people or sleeping positions that must extra support, such as back sleepers. It maintains the natural alignment of the spine, thereby helping to improve sleep quality and physical health. Thick mattresses usually offer better motion isolation properties. This means that even if one partner turns over or moves, the other person will experience minimal disturbance. This feature is particularly suitable for mattresses shared with a partner. Thick mattresses generally look more luxurious and high-end, and can enhance the visual effect of the bed and make it more impressive. This is very attractive to users who like high-end beds or pursue visual beauty.   Cons: Thick mattresses are generally more expensive than thin ones. This is due to the increased use of materials and more complex manufacturing processes. Thick mattresses may not be as affordable for those on a budget. Thick mattresses may be more difficult to transport and install due to their weight and thickness. This may cause inconvenience for users who move frequently or need to replace their mattresses regularly. If the comfort layer of a thick mattress is too soft, it may cause excessive sagging, especially for lighter people. This can affect support, causing sleep discomfort or spinal misalignment. Thick mattresses will significantly increase the height of the bed. This may not be convenient for some users, especially the elderly or those with physical disabilities. Taller beds may not be easy to get in and out of.   Who is a thick mattress suitable for? Side sleepers: Pressure relief is crucial for side sleepers. A thicker mattress offers deeper comfort to relieve pressure points and supports proper spinal alignment. People who weigh more than 230 pounds: Thicker mattresses have more layers and higher levels of support. It provides firmer support, preventing your body from sinking too deeply into the mattress. This helps maintain healthy spine alignment. Family sleepers: Thick mattresses provide better motion isolation, greater support and comfort. Thinner mattresses can support more weight.   Who is not suitable for thick mattresses? People with mobility issues: If you have mobility issues, it will be difficult for you to get out of bed because the bed is too high and you cannot control it. Not to mention, moving and rotating them can be a hassle, especially if you do it yourself. Small bedroom space: A high mattress will look out of place in a smaller bedroom. It feels like your bed takes up the entire space, Limited budget: Thicker mattresses use more materials, so they will be more expensive.