Our supportive threelayer foam pillow helps align your neck and keeps you cool all night A meticulously designed inner layer contours to your head and neck in all sleep positions while two plush outer layers offer cushioning comfort Tiny channels in the foam circulate air out and away to prevent overheating Our extra breathable jersey knit cover looks cool and sleeps even cooler Made from materials that are safe for you and the planet our foams are certified by CertiPURUS and the pillow cover is approved by OEKOTEX Standard 100 125 gusset