How Thick Should a Mattress Topper Be

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Written by: Alex Savy
Read 7 minLast updated on February 19, 2023

A mattress topper shouldn’t be too thin that it doesn’t provide enough support for the user, nor too thick that it becomes too heavy on the bed. A sweet spot must exist to ensure a balanced sleeping experience for the user. That’s why mattress topper thickness is crucial.

A mattress topper is an additional layer of comfort. Naturally, users add a mattress topper to their mattress for a better night’s rest. So, the wrong thickness could defeat the purpose. Different models and types of mattresses complicate that matter even more.

This article offers practical advice for new and old mattress topper shoppers to avoid future headaches and back pain.

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The Importance of Mattress Topper Thickness

The importance of mattress topper thickness lies in its comforting power. Users will feel the bed frame underneath them if their mattress is too thin. Plus, if it’s an innerspring mattress, users will feel the springs poking all over their bodies.

The Importance of Mattress Topper

A mattress with the perfect thickness helps the user sleep comfortably. Thus, the role of a mattress topper. A mattress topper will soften even the firmest mattress, allowing the user to sleep without waking up to aches and pain. So, how can regular buyers determine the best mattress topper thickness for them?

Keep in mind: a person’s body weight is essential to consider when buying a new mattress topper. An overweight person won’t feel any difference if the mattress topper is too thin. On the other hand, someone who is much lighter might sink into a thicker mattress topper. Thus, when buying a mattress topper, the user should consider their weight.

Another factor to consider when purchasing a mattress topper is purpose. If someone is looking for a mattress topper to relieve their back pain, a thicker mattress topper might actually worsen the issue. Likewise, firm bed toppers for lower back pain must balance thickness and body weight.

Similarly, side sleepers need the perfect thickness so they can move freely. A thick mattress topper will “swallow” a person. Mattress toppers that side sleepers love will be wide enough to provide comfort but not so thick that it forces the user in place.

Also Read: Mattress Topper for A Hospital Bed

How Thick Should a Mattress Topper Be?

A mattress topper should be three inches thick for a medium-weight person with back pain. If it’s four inches thick, it might cause more back pain. If it’s two inches thick, it might have no effect at all.

At the same time, a two-inch mattress topper could be the ideal thickness for a lightweight person. It’ll provide enough support and comfort for better nocturnal movements. Therefore, the trick is to know the person’s weight and the best thickness for that weight.

Mattress topper should be

In general, a mattress topper should be between two and four inches thick based on the person’s weight. Moreover, users should consider why they want to get a mattress topper. Once they get the thickness right, it’ll be much easier to get the most comfort out of their purchase.

Users may need a two-inch topper to lighten the firmness of a multi-layered mattress. Otherwise, the mattress topper will be an unnecessary accessory. That’s why the model and make of the bed should also guide the best fitting topper.

Also Read: Best mattress topper for stomach sleepers


Can you DIY a mattress topper with custom thickness?

Yes, you can DIY mattress toppers. However, purchasing a ready-made mattress topper might be more cost-effective. The DIY way will cost you more material and time, and the finished product might be subpar. With a mass-produced mattress topper, you will get a professionally-made mattress topper with a money-back guarantee.

Is a Thicker Mattress Topper Better?

A thicker mattress tends to be a better option if you are looking for more support for cushioning. Thicker mattress toppers of around 3-4 inches are well-suited if you are a heavier sleeper, as they will help your topper last longer under the extra weight. And thicker mattress toppers are a good option if you are a side sleeper, as the extra inches provide more area to let the foam give way under your shoulders and hips.


In conclusion, most mattress toppers available on the market are between two and four inches thick. Buyers should be aware of their body weight and the nature of their mattresses. The heavier the person is, the thicker the mattress topper should be. If the mattress is too thick, the topper should be thinner. Buyers who take care of these two factors will choose the perfect mattress topper thickness.

Feel free to leave some comments about ideal mattress topper thickness. Let others share experiences and gain practical insights from more experienced users.

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