Mattress Materials Guide · Cooling

Cooling, Mattresses for Hot Sleepers

Hot sleepers wake up sweaty. The right mattress can help, but "cooling" is one of the most-abused marketing terms in the mattress industry. Real cooling comes from breathable materials, airflow, and moisture wicking. Here's the honest cooling mattress guide.

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Every cooling article we've written

Every article in the cooling cluster on one page.

Questions, Answered

The cooling questions we actually get asked.

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What makes a mattress cool?
Three factors: (1) breathable materials like latex or pocket coils allow airflow, (2) moisture-wicking covers (bamboo, Tencel) move sweat away, (3) heat-conductive fills (gel beads, copper) absorb heat. Real cooling is structural, not just marketing claims.
Is gel memory foam actually cooler than regular memory foam?
Modestly. Gel beads or gel-infused foam absorb body heat faster than plain memory foam, but the foam still traps heat overall. For meaningful cooling, latex or hybrid is better than any memory foam.
What's the coolest-sleeping mattress material?
Latex, followed by pocket coil with thin breathable comfort layer, then gel hybrid, then traditional innerspring, then plain memory foam. Cover and bedding matter as much as the core material.
Can a mattress topper make a mattress cooler?
A cooling topper (gel-infused foam, latex, wool, or moisture-wicking cover) can offset a warm mattress somewhat. Won't fix a mattress that traps heat in its core, but helps with the surface temperature.
What bedding helps with cooling?
Bamboo viscose sheets, lightweight all-season duvet at lower tog rating, breathable mattress protector (avoid waterproof plastic-y protectors). A bedroom temperature of 17-22°C is the research-backed sleep range (Caddick et al. 2018).