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Mattress Thickness in a Nutshell: How to Choose the Right Mattress for You

Tumbling all night, listless during the day - yes, you need a new mattress! And, we're going to reveal the secrets of mattress thickness so you can say goodbye to tossing and turning ever again.

In the next part of our journey, you'll learn about the importance of mattress thickness, how to choose the right mattress, and ultimately find that mattress that will keep you up all night. Ready? Get started together!

Understanding Mattress Thickness

mattress sizes in inches

Definition of Mattress Thickness

Mattress thickness refers to the distance from the top to the bottom of a mattress. This dimension affects sleep comfort, particularly for those who prefer to sleep on their sides or backs – a thicker mattress may provide better support. Mattress thickness generally ranges between 6 inches (about 15 cm) to 14 inches (about 36 cm), although there are thinner and thicker styles.

Impact of Mattress Thickness

Mattress thickness affects the firmness, support, and durability of a mattress. Generally, a thicker mattress tends to be softer and more comfortable, but it may lack support; a thinner mattress tends to be firmer, with better support, but it may not be as comfortable. In terms of durability, a thicker mattress usually lasts longer because it contains more material.

Here's a table to compare the properties of mattresses of different thicknesses:

Thin Mattress (6-8 inches)

Medium-thickness Mattress (9-12 inches)

Thick Mattress (13 inches and above)








May be lacking






May be lacking



Choosing the Appropriate Mattress Thickness

When choosing a mattress thickness, consider your height, weight, sleep position, comfort requirements, and health status. For example, heavier individuals and side sleepers may need a thicker mattress for adequate support and pressure relief, while lighter individuals and back sleepers may find a thinner mattress more comfortable. Additionally, if you have back pain or other health issues, you might need a specific type and thickness of the mattress.

Relationship between Mattress Thickness and Bed Frame

The thickness of your mattress affects not only your sleep quality but also your choice of bed frame. Generally, a thicker mattress requires a higher bed frame to keep the bed height moderate for easy access. Moreover, some special bed frame designs, like foldable beds or Murphy beds, might have specific requirements for mattress thickness.

Understanding mattress thickness and choosing the appropriate thickness based on your personal needs is one of the key factors to ensure good sleep quality.

The Relationship between Thickness and Mattress Type

mattress sizes in inches

Memory Foam Mattress

A memory foam mattress is a type that can self-adjust according to your body shape and temperature. Memory foam mattresses are usually thicker than other types of mattresses, generally between 8-14 inches. Thicker memory foam mattresses tend to be more comfortable, offering better pressure relief and body support. However, this type of mattress may be too soft for people with less body weight and may not provide sufficient support.

Innerspring Mattress

An innerspring mattress is one of the most common types of mattresses, typically using steel springs as the support layer. The thickness of an innerspring mattress usually ranges from 6-10 inches. While innerspring mattresses provide good support, a thinner mattress might not be comfortable enough for heavier individuals. Also, a thicker innerspring mattress might lose some comfort due to an overly thick middle spring layer.

Air Mattress

An air mattress is made up of one or more inflatable air chambers, and its thickness can be adjusted by adding or reducing air. The thickness of an air mattress typically ranges from 8-15 inches, with thicker mattresses usually being more comfortable but may require more air to inflate. Unlike innerspring and memory foam mattresses, the thickness of an air mattress can be adjusted according to personal preference, providing personalized comfort and support.

Below is a comparison chart outlining the major differences in thickness and comfort levels for these three types of mattresses:

Mattress Type

Common Thickness Range

How Thickness Impacts Comfort

Memory Foam Mattress

8-14 inches

Thicker mattresses are usually more comfortable, offer better pressure relief and body support, but may be too soft for lighter individuals

Innerspring Mattress

6-10 inches

Thinner mattresses may not be comfortable enough for heavier individuals; thicker innerspring mattresses might lose some comfort due to an overly thick middle spring layer

Air Mattress

8-15 inches

Adjustable thickness; thicker mattresses are usually more comfortable but may require more air to inflate

Mattress Size Guide

bed size

Relationship Between Mattress Size and Thickness

The size of a mattress usually involves three dimensions: length, width, and thickness. When choosing a mattress, you cannot overlook the significant aspect of thickness. The thickness of a mattress directly affects sleeping comfort and the mattress's support. An ideal mattress thickness should be determined according to an individual's height, weight, and preference. A mattress that is too thick may be too soft to provide adequate support for the body, while a mattress that is too thin may be too hard to offer sufficient comfort.

Introduction to Common Mattress Sizes

Here are some common mattress sizes and their suitable population and occasions:

Mattress Type

Size (Inches)

Suitable Population or Situation

Twin Mattress

39" x 75"

Children, single adults, or guest rooms, dormitories

Twin XL Mattress

39" x 80"

For bigger children or single adults, college dormitories

Full Mattress

54" x 75"

Single adults, couples, teenagers

Queen Mattress

60" x 80"

Adult couples, some adults who need more space

King Mattress

76" x 80"

Couples, need more space or have children or pets sleeping together

California King Mattress

72" x 84"

Taller or individuals needing more space

How to Choose the Right Mattress Size

When choosing a mattress size, consider the following factors:

  1. Bed size: The mattress must match the bed frame. Measure the size of the bed frame before purchasing a mattress.
  1. Room size: The mattress should not be so large as to take up too much room space, hindering regular activities. Consider the ratio of mattress size to room space before purchasing.
  1. User's physical condition: Choosing the mattress size requires considering the user's height, weight, and sleep habits. Larger mattresses provide the body with more moving space, while smaller mattresses are suitable for smaller people who move less.
  1. Budget: The size of the mattress also directly affects its price. Consider the price you can afford while ensuring comfort and applicability.

Above is a detailed introduction and selection advice about mattress sizes, hoping to help you choose the most suitable mattress for you.

Mattress Thickness and Comfort

comfortable level

The Difference Between Hard and Soft Mattresses

The choice between a hard and a soft mattress is determined by the mattress's thickness, material, and construction. Hard mattresses are usually thinner with stiffer internal materials, while soft mattresses are generally thicker with softer internal materials. The following table lists the key differences between them:

Mattress Type




Suitable For

Hard Mattress



Strong support, can effectively maintain the normal curve of the spine, helping to improve back pain

People who are accustomed to sleeping on their backs or stomachs, or those with back pain

Soft Mattress



Relatively weak support, but can provide more comfort, relieving pressure points

People who prefer side sleeping or demand higher comfort

Supportiveness of a Mattress

Supportiveness is one of the most critical functions of a mattress. It's essential for the mattress to provide sufficient support to maintain a proper body posture. A supportive mattress can effectively distribute body pressure, alleviate body fatigue, and improve sleep quality. The table below shows the supportiveness of mattresses of different thicknesses:

Mattress Thickness


Suitable For


Strong, good at distributing pressure, effectively maintaining the normal curve of the spine

Back or stomach sleepers, those with back pain


Balanced, providing a certain level of support and comfort

Those without significant sleep issues, who sleep in various positions


Weaker, providing more comfort but less spinal support

Side sleepers, those requiring high comfort

H3: Choosing Mattress Thickness According to Personal Needs

The choice of mattress thickness should take into account personal factors like body weight, sleep posture, health conditions, and personal preferences. The following table lists the recommended mattress thickness for different needs:

Personal Needs

Recommended Mattress Thickness


Lighter body weight


Enough support while maintaining comfort

Heavier body weight


Provide sufficient support to prevent the body from sinking too much

Spinal issues

Medium to Thicker

Provide good support to maintain the normal curve of the spine

Preference for a soft mattress


The comfort of a soft mattress mainly comes from its thickness and softness

Preference for a hard mattress


The stable support of a hard mattress mainly comes from its thin thickness and hard materials

Key Considerations in Choosing a Mattress

couple bed

Personal Preferences and Lifestyle Habits

  • Sleeping position: Each of us has our own unique position when we sleep, some like to sleep on their sides, some like to sleep on their backs, and some like to lie on their stomachs. These different sleeping positions have certain requirements for the firmness and thickness of the mattress. For example, side sleepers usually need a slightly softer mattress for adequate support in the lower back and shoulders, while back sleepers and prone sleepers need a firmer mattress to maintain the natural curve of the spine.
  • Sleeping habits: Are you hot or cold? If you sweat easily, then a more breathable mattress is recommended; if you get cold easily, then a mattress with better insulation properties can be chosen.

Physical Health

  • Skeletal disorders: For people with skeletal disorders, choosing the right mattress is even more important. People who suffer from back pain or joint pain usually need to choose a more supportive, moderately firm mattress to maintain the normal curve of the spine and reduce pain.
  • Allergy: For people with allergies, it is more important to choose an anti-allergy, anti-mite mattress. Such a mattress can effectively prevent the growth of allergens and dust mites, thus protecting skin health.

Budget Considerations

  • Mattress Price: The price of a mattress depends on many factors, including material, brand, size, and thickness. When setting a budget, in addition to the price of the mattress, you need to consider the price of the bed frame, sheets, pillows, and other ancillary equipment. At this point, as experts in the mattress manufacturing industry, we at Suilong offer a wide range of mattresses at various price points, so there is always something for you.
  • Long-term investment: Buying a mattress is a long-term investment that not only affects the quality of your sleep but also your physical health. Therefore, it is advisable not to get too hung up on price when buying a mattress - what suits you is best.

Tips for Maintaining and Cleaning Your Mattress

Tips for Mattress Cleaning and Maintenance

  1. Turn the mattress over regularly: this will help the mattress to maintain its good shape and prolong its life.
  2. Avoid eating and drinking on the mattress: This will prevent the mattress from being contaminated by food and drinks.
  3. Use a mattress protector: this prevents the mattress from being contaminated and prolongs the life of the mattress.

Ways to Extend the life of your mattress

  1. Avoid jumping: while this may sound fun, jumping puts a lot of pressure on your mattress and affects its lifespan.
  2. Clean your mattress regularly: cleaning off dust and dirt from your mattress will keep it fresh and will also help to extend the life of your mattress.

This is a comprehensive explanation of mattress thickness, selection, and maintenance, and we hope it will help you choose the best mattress for you and enjoy a quality sleep experience.

Choosing the right mattress is a long-term investment that directly affects the quality of your sleep, and therefore your health and quality of life. Therefore, we want you to take the time to learn about and compare different mattresses to find the one that suits you best. In this process, Suilong always strives to provide you with the best quality products and the most comprehensive services.

Sleep is a very important part of our lives, and a good mattress can make your sleep quality much better, so that you can be energized to meet new challenges every day. We look forward to seeing you find that mattress that will make you sleep soundly at Suilong. May every night be a sweet dream for you, and every day be full of energy for you.

How to setup this spring mattress?
The manufacturer states wait 72 hours to fully inflate. I did notice it inflated in different spots. Mine fully inflated after 3 days. I love the spring mattress. It's perfect comfort level. I would wait three days.Typically it will expand within just a few hours.
How firm is this mattress? Is it suitable for children?
This mattress is medium firm with soft fabrics and supportive coil springs, my kids love it and it helps relieve my back pain
Is the mattress good for side sleepers and help with relieving pressure?
Yes! I sleep on my sides and back.and find it very soft and comfortable. I love this mattress. I had a lot of back and hip pain, since buying this I very rarely have any pain.

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