Article

Can a Mattress Topper Change How Your Bed Feels?

Quick answer

A topper can soften a firm mattress or add cooling, but it cannot fix a sagging core. Choose 5 to 8 cm of latex or memory foam by the feel you want, and check it fits your mattress.

By Sleepwit Sleep Team · Updated 2026-10-31 · 1 min read · Part of the Mattress buying guide guide · Supports When Should You Replace Your Mattress? 7 Signs

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Key points

  • What it changes. Surface softness, a little temperature behaviour and protection.
  • What it does not. Support. If the mattress sags, replace it.
  • Choosing. Latex is springy and cool; memory foam is cushioning.

What it changes

Surface softness, a little temperature behaviour and protection.

What it does not

Support. If the mattress sags, replace it.

Choosing

Latex is springy and cool; memory foam is cushioning. Thickness changes the effect.

Frequently asked questions

How thick should it be?

Often 5 to 8 cm.

Will it slip?

Choose one with a fitted cover or straps.

Keep reading

This article is general information, not medical advice. If you have persistent pain or sleep problems, please speak to a doctor.

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