The Contour CPAP Support Pillow allows CPAP, BiPAP, and APAP user to get a comfortable night's rest by granting the freedom to sleep in any position while wearing a mask. The Contour CPAP Support Pillow has two hollowed out areas to accommodate the mask. The sleep apnea pillow also helps reduce pressure buildup on the face to prevent red marks and soreness. The pillow supports the neck and spine maintaining proper body alignment and improves airway alignment. Pillow cover included with the CPAP pillow. Contour CPAP Support Pillow comes in 3 heights: Low Profile (3.5"), Standard (4"), and High Profile (5").