The Tranquillow Memory Foam Pillow is carved from one piece of premium-grade memory foam, a new-age temperature-sensitive viscoelastic foam that responds to your body's warmth and moulds and shapes to your head and neck, thus diffusing pressure for a less stressful sleep environment.Care Instructions - Foam Inner: Air pillow regularly. Light dab clean only, mild detergent, warm water. Do not machine wash. Do not tumble dry. - It is not recommended to fully immerse in water. Dry flat away from direct sunlight. Due to the density of the cellular construction, your pillow may take some days to completely dry. - Cover: Normal wash and dry. (To avoid damage to the foam from constant removal of the cover, leave cover permanently on the pillow. SPECIFICATIONS - Low Size: 51cm long x 38cm wide x 11.5 cm high side and 10cm low side - TGA Listed: Yes - Australian Register of Therapeutic Goods Number: No.174455, Pillow - Medium Size: 51cm long x 38cm wide x 12.5 cm high side and 11cm low side - Inner Memory Foam: All new visco elastic memory foam especially treated to inhibit allergens - Outer Cover: 100% Cotton - Country of Manufacture: Australian Made