A direct comparison of active cooling pads and passive cooling pads, with decision triggers for hot sleepers.

Active pads use powered systems to move heat away. Passive pads rely on materials and airflow. This page is the practical choice guide. For the conceptual overview, see active vs passive cooling.

See water cooling systems and air cooling pads.
Start with best cooling pads and gel mattress pads.
Some sleepers pair a passive pad with a cooling comforter. This can feel close to active cooling without the upkeep. The MellowSleep CloudCool comforter review is a good example.
If you are unsure, start passive and upgrade only if needed. The buying guide and best active cooling list help you make that call.