Our chilliest, medium foam mattress equalizes temperature with Phase Changing Material (PCM).
The Harmony Chill 2.0 has a medium, supportive feel that allows any sleeper to stay comfortable throughout the night. Its Cooling Knit Fabric Cover keeps the sleeper cool and enhances the capabilities of the interior foams. A unique layer of PCM (phase-changing material) directly under the cover absorbs and releases heat to equalize the temperature.