Mattress Thickness Guide – How to Choose Your Mattress Thickness?

There are several things in life that feel comfortable and luxurious. Yet, nothing comes close to climbing into a plushy, clean, and bouncy bed after a long stressful day at work. What do you say?

Alright. Here’s what you need to do.

Imagine coming home all tired, with a restless body, feet throbbing with pain, and anxiety, lots and lots of physical and psychological tension, what would be the first thing you’d want? 

For a person like me, I just want to come home and jump on my mattress to rest and rejuvenate finally.

How would you feel about it? Coming home to a comfy mattress that awaits you for a good night’s sleep ahead? It feels like nirvana, isn’t that right?

As a matter of fact, your mattress plays a crucial role in your day to day life. In fact, your mattress decides whether you’re going to have that peaceful sleep and function actively the next day or not.

So why not spend a little extra on that plushy mattress and make some difference in your life? 

Sounds appropriate, no?

Okay. Are you up for purchasing a new mattress, or you already have an extravagant piece at home? 

Are you contemplating whether you should switch it with a new one?

Whatever is the case, there are a number of questions that keep making the rounds in one’s mind when purchasing a household product like a mattress.

One of the most important attributes related to a mattress would be its thickness level.

The thickness level of your mattress plays a vital role in its comfort and the quality of your sleep.

It is precisely the reason a mattress is available in so many thickness levels, so you can choose the one that goes with your requirements and style.

Standard mattresses by retail brands are mostly available in 6-9 inches of thickness. Whereas, luxurious mattresses by high-end brands come in 10-12 inches.

Besides, a few mattresses come with an exceptional thickness level of 14-18 inches.

Well, the question remains standing here. How thick a mattress should be? Or how much mattress thickness does one need to have?

Let me give you a hint here: mattresses that are too thin or too thick don’t work for most people.

Confused? Let’s dig into the details.

how to choose the mattress thickness

Before we begin, let me take you through a rundown of factors that may affect the thickness level of your mattress.

For example, if you sleep with your partner, you need to look for a mattress that fulfills the needs of both of you.

Following are a few factors that you need to consider when choosing the mattress thickness level:

  • Your height
  • Your body weight
  • Your underlying health conditions
  • The size of your bed

Nevertheless, several other things can affect your mattress thickness level as well, including:

  • The material of the mattress
  • It’s construction style
  • Your personal preference

Don’t be confused with all the details. It’s a lot simpler than you may think.

Now let’s see how each of the factors I have shared above affect the level of your mattress thickness.

Height and Body Weight

Considering the height and body weight of the sleeper is essential while choosing a mattress.

If you weigh more than an average person, do you think a thin mattress would work for you? See, it’s that simple!

Sleepers that weigh 200 lbs or less can expect to sleep comfortably on a thin mattress that comes with an 8-inch or less thickness level.

Sleepers that weigh between 200 to 280 lbs would require purchasing a mattress with 10-12 inches thickness.

Sleepers that weigh more than 280 lbs need to buy a mattress that is at least 12-inches thick or preferably more in order to ensure better support.

I know a lot of people would consider 14-18 inch thick mattresses to be a luxury rather than a necessity. However, it is the best option for heavier individuals as a thin mattress may start sagging earlier when extra pressure is applied.

Health Conditions

As I’ve mentioned above, your mattress can notably affect your sleep. But do you know that your mattress can affect your underlying health conditions as well?

Certain health conditions require additional care when sleeping or resting. For example, people with a constant issue of backache are often recommended to sleep on a firmer surface as a plush mattress may aggravate the pain.

Whereas, a lot of people with the following health conditions are recommended to sleep on plush surfaces:

  • Rheumatoid Arthritis
  • Hip or shoulder pain
  • Fibromyalgia

Besides, your sleeping position matters a lot as well. If you’re a side sleeper, a thick and soft mattress will provide you with better support while you’re asleep.

The central idea behind this entire concept is to look for a mattress that provides you with the comfort you desire so you can sleep peacefully, just like a baby.

Bed Size

Another thing that can prominently affect your mattress choice is the size of your bed.

First and foremost, you need to consider the height of your bed and how many inches would the mattress add once you start using it.

In case your bed gets too tall, it may become difficult for you to get in and out of it. The same goes for a bed that is too short in height.

Apart from the mattress, certain other things can affect the size of your bed too, including:

  • The bed foundation
  • The bed frame
  • Mattress topper
  • Box springs

Makes sense? Henceforth, you must take care of your bed size when purchasing a mattress. Make sure to add more and more into your comfort rather than going for the aesthetics.

Mattress Thickness Level Guide

mattress thickness guide

To make it more clear, here is a mattress thickness level chart to provide you with an overview of various thickness levels and how they matter.

3-5 Inch Mattresses

Starting with the low profile mattresses first. Yes, I’m sorry guys, but the mattresses with the thickness level of 3-5 inches are usually known as low profile in the mattress industry.

Most of the mattresses with 3-5 inch thickness are crib mattresses, folding mattresses, or air mattresses sometimes.

Such mattresses don’t work well for adults as they may happen to sacrifice your comfort primarily because of your body weight and height. Thus, they’re beneficial for children and can be used as crib mattresses.

If you’re looking to buy a 3-5 inch mattress for your child or even yourself, I think you should give a try to Linenspa 5-Inch Gel Memory Foam Mattress. I’m sure you’ll like it. 

Linenspa 5-Inch Gel Memory Foam Mattress
  • 5 inch thick memory foam mattress with firm support
  • 1 inch comfort layer made of gel-infused memory foam for pressure point relief
  • 4 inches of high density base foam for proper back support

5-6 Inch Mattresses

Mattresses with the thickness level of 5-6 inches are known as thin mattresses.

Thin mattresses are made using various layers of foam; therefore, they are supportive and dense. 

Though the level of support is not adequate, it still works for a lot of people out there.

It is mainly the reason thin mattresses are recommended to teens or individuals with short height as they can easily get in and out of the bed without having any inconvenience.

A thin mattress can also be beneficial for sleepers with limited mobility.

You’ll find most of the twin mattresses fall in this thickness level since they’re preferred by teens in the usual circumstances.

Milliard Tri Folding 6-Inch Memory Foam Mattress is the best option when it comes to thin mattresses. Don’t forget to check it out. 

Milliard Tri Folding Memory Foam Mattress
  • The Milliard Memory Foam Tri-fold Mattress allows you to get a comfortable night's sleep wherever you go. Simply unfold...
  • Memory foam is known for the therapeutic qualities and comfortable support. The Milliard tri-fold mattress is ventilated...
  • The Milliard Memory Foam Tri-fold Mattress is the ideal solution to temporary sleeping accommodations. Perfect for...

8-12 Inch Mattresses

Now here comes the standard mattresses everyone knows about. 8-12 inches of mattress thickness is considered the standard height in the world of mattresses.

Start browsing today, and you’ll find most of the mattresses in 10-inch height. However, high-end mattresses are mostly taller due to their luxury content.

Almost all the people usually consider an 8-12 inch thick mattress to be the most comfortable.

I have a Signature Sleep Contour Hybrid Mattress, and it’s 12 inches tall. No wonder it’s the best purchase I’ve made so far. Exceptionally comfortable and oh my God, the support it provides is unmatchable.

Signature Sleep Contour Hybrid Mattress
  • Deluxe hybrid mattress combines high-performance independently encased coils, memory foam and convoluted foam to deliver...
  • The core is made of high-performance independently encased coils, designed to eliminate motion disturbance and keep you...
  • The memory foam and convoluted foam in the pillow-top allow for complete relaxation by molding to your body, relieving...

Besides, I’ve observed that most of the queen and king-sized mattresses fall into this category. Why? 

Maybe because it is most preferred by people. Who knows?

The best part of it is that 8-12 inch mattresses are more economical than the rest. I believe it’s precisely the reason why they’re so popular.

14-18 inch Mattresses

Mattresses with the depth of 14-18 inches are known to be thick mattresses.

Most of the mattresses with a thickness level of 14 inches and above are usually hybrid mattresses, while a few of them may be new memory or latex foam mattresses.

Such mattresses are a little expensive as compared to the traditional ones. Yet, one thing that makes them the best is their durability.

Due to the increased layers of dense foam, they last longer, and the chances of sagging are minimal. Hence, it wouldn’t be wrong to call their additional upfront cost worth it.

Nonetheless, it all comes down to the material used in the making of the mattress.

Let me explain to you how this works. When talking about a 12 or 14-inch foam mattress, the extra two inches of foam can significantly make a difference in the support and comfort your mattress provides.

Here’s my recommendation, you should stick to Zinus 14-Inch Gel Infused Coil & Memory Foam Hybrid Mattress. It may be a little expensive but it’s worth every cent you pay, I promise. 

Zinus 14 Inch Gel-Infused Memory Foam Hybrid Mattress
  • COOL, CALM & COMFY - This mattress delivers the 3 C’s of sleep, even if your partner likes to practice their dance...
  • CONFORMING FOAM & POCKET SPRINGS - 1.25 inches soft comfort foam, 2 inches cooling Fusion gel memory foam, 3 total...
  • CERTIPUR US CERTIFIED - Highest quality foam is CertiPUR US Certified for durability, performance, and content

Benefits of a Thick Mattress

benefits of a thick mattress

Even though a thick mattress doesn’t guarantee a good night’s sleep, it still comes with a massive number of benefits.

After using a thick mattress myself and reading a couple of online product reviews as well as blogs, I’ve finally come to terms that investing in a thick mattress wasn’t a bad idea at all. In fact, I’m really happy with my mattress and how it serves me.

Now let’s see some fabulous benefits your thick mattress brings for you.

Weight Bearing Capacity

As I briefly shared above, your weight and mattress thickness go hand in hand. Therefore, one can significantly affect the other.

It doesn’t matter how much you weigh; a thick mattress can easily bear the applied pressure without really sagging. The comfortable layers of foam in a thick mattress wouldn’t let you sink in even with pressure. Isn’t it great?

It is primarily the reason thick mattresses don’t sag much. Even after years of use, you’d hardly come across a saggy mattress. I can say this with experience.

My mother has a Classic Brands Gel Memory Foam 14-Inch Mattress, and it’s been seven years since she has been using it. Now guess the best part of the story? It does NOT sag at all. In fact, it’s still just as new as it came.

Classic Brands Gel Memory Foam 14-Inch Mattress
  • 76" W x 80" L x 14" H
  • Premium pressure-relieving memory foam and high-density aerated cool gel memory foam are combined together to provide...
  • Beautifully tailored and detailed with a stretch knit fabric cover with waterfall edge and matching knit side panels

Beneficial for Health

A thick mattress is certainly beneficial for your health, especially for people with spine issues. It may also surprise you that a plush and thick mattress has psychological benefits as well.

Okay. Let me highlight a few pros it accompanies:

It provides a perfect alignment to your spine.

It works well for joint stiffness and muscle spasms.

It is highly recommended for people with skin sensitivity.

It can help with backache too in case of a muscle injury.

It can promote better sleep while eliminating insomnia.

It can reduce anxiety as well as stress on both physiological and psychological levels.

It is preferred by all types of sleepers given the comfort and support it provides.


Last but not least, thick mattresses are generally more durable than any of your traditional mattresses. The layers and layers of dense foam in a thick mattress prevent the dips and lumps that a thin mattress may develop over time.

Due to its pressure bearing abilities, it wouldn’t sag much. Thus, it would be safe to say that your thick mattress is undoubtedly going to stay stable for years to come. You have my word.

Summing it up, I would stress over taking the mattress thickness into account before actually going ahead and buying one.

A mattress that is too thin or too thick for you may not be as beneficial in the long run as you want it to be. Henceforth, it is one thing that desperately needs your attention.

Of course, you wouldn’t want to purchase a mattress every other year, so why not think a little before popping out your credit card? Could you give it a thought?

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