Doesn’t trap heatDesigned to prevent overheating, the foam features hundreds of perforations that keep air circulating for your deepest, coolest sleep.Cool to the touchCool-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 comfortableSupportive foam helps with proper alignment throughout the night. Your neck will thank you in the morning.