Do cooling mattresses actually work?
Some features genuinely help and some are mostly marketing. Gel-infused foam and phase-change covers slow heat buildup but do not actively chill you. The most reliable cooling comes from airflow: the coils in a hybrid and a breathable cover move heat away far better than dense all-foam. If you sleep hot, a hybrid or an open-cell foam with a breathable cover will out-cool a plain memory foam bed.












































































































