Deep Reaction® Max Gel Memory Foam
CustomFit™ HD Memory Foam
Serta® Micro Hybrid Coil™
1025 Hybrid Support™ System with BestEdge® Foam Encasement
*15x benefit exists while the phase change material is active. Results based on the difference in heat absorbed by Serta Arctic and Serta Perfect Sleeper Luminous Sleep mattresses while the phase change material is active.