Are cooling mattresses worth it?

We earn a commission if you buy a mattress through this page, so being explicit is worthwhile: most people reading this should spend $70 elsewhere on the site and come back in a month if it has not worked. That is the honest advice and it is the reason this page exists.

What a cooling mattress can actually do

It can stop your bed being significantly hotter than your room. A pocket-coil core with a thin comfort layer lets heat move away from you instead of accumulating in a solid slab, and that is a genuine and permanent improvement over an all-foam bed.

It cannot make your bed cooler than the room. No passive product can, whatever it costs. If your bedroom is 78°F, a $900 mattress will not save the night and a $70 fan probably will.

The arithmetic against the cheaper fixes

Using live prices from this site and typical service lives:

Read down the “fixes” column rather than the price column. The cheap interventions each address a specific cause; the mattress addresses one specific cause too, and it happens to be the one least likely to be yours. Spending $250 to fix a problem that was your pillowcase is not a good outcome even though a hybrid is a better mattress.

Note also that a bed fan — the only genuinely active option in the list — costs less per year than a budget mattress and removes heat rather than merely failing to add it. If your goal is specifically a cooler bed rather than a better bed, that is the more efficient purchase. See bed cooling systems.

When it genuinely is worth it

• You have an all-foam mattress and you know it is the cause. Hot only where your body contacts the bed, worse the longer you lie still. A hybrid fixes that structurally.
• Your mattress is past its service life anyway. Over eight to ten years old, or sagging. You are buying a mattress regardless, so buying a hybrid rather than an all-foam bed is a free improvement.
• You have worked the ladder and the surface is still the problem. Sheets, top layer, pillow and a pad all done, and you are still hot at the contact points.

When it is not

• Your bedroom is hot. Fix the room. Nothing on the bed can beat ambient temperature.
• You have not changed your sheets or pillow yet. Do that first. It is a tenth of the cost and it works more often than not.
• Your mattress supports you well and is under five years old. A topper or pad addresses the surface at a fraction of the cost.
• You are choosing between an all-foam “cooling” bed and your current mattress. Replacing foam with foam because the new one says cooling on the box is the worst purchase in this whole category.

If you do buy one

Buy a hybrid. Prefer latex over memory foam in the comfort layer if the budget stretches. Put it on a slatted base rather than a solid platform so the underside can breathe. And check the return policy carefully, because temperature is the one property you genuinely cannot evaluate in a showroom — it takes several nights in your own room.