Doesn’t trap heat. Designed to prevent overheating, AirScape foam features hundreds of perforations that keep air circulating for your deepest, coolest sleep. Cool to the touch. Cool-touch yarns and Phase Change Material collect and disperse heat immediately — creating a crisp and cool experience every time you lay your head down. Supportive, yet comfortable. Supportive foam helps with proper alignment throughout the night. Your neck will thank you in the morning.