8-Inch Vs 12-Inch Memory Foam Mattress

3 min read

How often have you woken up at night with your back hurting or shoulders paining? 

We know how irritating that can be, which is exactly why we are here to discuss mattress thicknesses and sleeping positions. But how to get the right-sized memory foam mattress for your bed frame?

Now most memory foam mattresses are available in four to five sizes, giving you the liberty to pick the needed size. However, you should know that the two common sizes an average adult chooses are 8-inch and 12-inch. Thicker comfort layers work for most but may be an expensive choice. 

On the other hand, thinner comfort layers may be needed for people with medical issues. So, in this article, we will discuss the pros and cons of both these mattresses so that you can decide better. Keep reading!

12 Inches Memory Foam Mattress

12 Inches Memory Foam Mattress

Thicker mattresses are known to be luxurious and will allow you to sleep comfortably throughout the night. These are the best choices for those with more body weight. Also, thicker mattresses of 12 inches or more are fit for beds on which more than one person will be sleeping. 


  • Offers luxurious comfort
  • Comes with multiple comfort layers
  • Improved sleep quality
  • Elevated bed height 
  • Provides additional support for pressure relief 


  • Expensive option 

8 Inches Memory Foam Mattress

8 Inches Memory Foam Mattress

A thin memory foam mattress will usually be fit for guest rooms that are not used very often. This mattress has layers of foam, which make sleeping averagely comfortable. Additionally, it works better for people with limited mobility or with medical issues. 

You will generally be directed by your physician to get a thin or firmer mattress in such cases. Besides, you can use thin mattresses as toppers for older coir mattresses.

However, you should not expect a luxurious bed if you choose this mattress. If you are going to use it often, 8-inch mattresses can sag over time as they are not very thick. 


  • Affordable option
  • Perfect for guest bedrooms 
  • Works for people with disabilities 
  • Can be used by petite individuals 


  • Does not last for a long time

How To Choose The Right Mattress Thickness? 

Are thicker mattresses better? Well that depends on what your preference, foam density, and what sleeping position you prefer.

1. For Stomach Sleepers

If you are a stomach sleeper, then it is best to get a thinner mattress of eight or ten inches that will ensure proper spine alignment. Thick mattresses, in this case, can trigger misalignment and trigger back pain. You may also face muscle stiffness and neck aches, which can be annoying. 

2. For Back Sleepers

For back sleepers, a 12-inch thick mattress will work very well. Since you are lying on your back, the spine curvature has to be maintained and a 12-inch mattress can provide the right support needed. 

On the other hand, if you get a 12-inch mattress with a thick base layer and a thin memory foam layer, that can also suit your requirements. You will not sink in as the foam layer is thin but get an elevated bed. This is suitable for lightweight sleepers who may not be comfortable with thick foam layers. 

3. For Side Sleepers

Side sleepers need support for their hips and shoulders, and a thick mattress of 12 inches will work well for them. If you are opting for thin mattresses because of the price, you can add extra cushioning in the form of mattress toppers. A memory foam mattress topper is a very good solution, and it will allow a good night’s sleep. Besides, a thicker mattress or a softer mattress will provide plush comfort. 

4. For Combination Sleepers

A 12-inch memory foam mattress for combination sleepers will be a great idea. Memory foam mattresses offer the right amount of comfort and will allow people to switch sides and lie on their back and stomach as well. 

Tips To Remember 

If you have a thin mattress, it is time to exchange it with one with the right mattress thickness. Never choose air mattresses for regular sleeping, even if they are thick, as they can cause body pain when used for prolonged periods. 

Some people prefer latex foam or poly foam which can be a good choice, but nothing beats a good memory foam quality mattress. 


Is an 8 inches memory foam mattress thick enough?

If you are petite and sleep alone on the bed, then an 8-inch mattress should be good enough. However, it will not be comfortable for large adults, side sleepers, and plus-sized people as the mattress may not be able to bear the weight. 

Can thick memory foam mattresses be used for a long time? 

Mattresses with a thick base layer are generally more durable, and they do not sag easily. Thinner mattresses, on the other hand, sag easily and will not last long. However, an average mattress made of memory foam will last longer than a mattress made of coir or other materials.

Final Words

While memory foam adds a comfort layer no matter what the thickness is, it is essential to get the right thickness depending on your sleeping position and weight. 

Moreover, you can find memory foam mattresses with comfort layers that are topped with a gel foam layer for popper air circulation. These can be ideal for people who sleep hot. 

If you have specific bodily problems, consult a certified sleep coach who can offer proper training and prevent poor sleeping positions and joint pain. And in case you are in doubt, you can always go for a 12-inch mattress that is perfect for providing extra support to thicker beds. 

Similarly, if given a choice while purchasing a new mattress, always choose a memory foam one over polyurethane foam, even if it costs more. Memory foam offers the right support to pressure points and will give you a thick bed to rest on after a tiring day. 

Popular Posts You’ll Enjoy!