Unique shape accommodates CPAP masks, hoses, and headgear Helps prevent mask leaks and pressure point soreness Provides increased comfort and compliance for CPAP users 4" loft supports the head and helps reduce pillow/mask interference and shifting Made in the USA. Dimensions: 21" x 15" x 4", Virgin Polyester Fiber The Core CPAP Pillow provides increased comfort and compliance for CPAP users by helping prevent pressure point soreness and air leaks for a restful night's sleep. Although this pillow was designed by a CPAP user, it is also ideal for those who are required to sleep on their side or stomach for other reasons such as pregnancy, fibromyalgia, and chronic pain. The unique shape and quilted side panels create a distinct edge, allowing the mask and hose to comfortably hang over the side of the pillow. This helps prevent mask/pillow interference and keeps the CPAP mask from moving or placing excessive pressure on the face. The resilient fiber fill supports the head while the crescent shaped cutout contours the shoulder for a restful night's sleep. The CPAP Pillow is firm enough to support the head without losing its edge, yet comfortable enough to sleep on all night. This pillow is available in 3 inch, 4 inch, and 5 inch thicknesses for different loft preferences. The thickness measurement is the height of the quilted side panel. Although our 4 inch pillow is our most popular size, the 3 inch pillow is more appropriate for those who sleep on their stomach or prefer less loft. For those who like to stack pillows or prefer more loft, the 4 or 5 inch pillow would be more appropriate. A washable, fitted pillowcase is included. 21 x 15 inches. Made in USA and contains no latex.