Works with all brands of CPAP masks.
Removable layers allow adjustment to four different heights (2 1/4, 3, 4 1/4, 5 1/4).) Its concave center improves airway alignment to ease breathing, while crescent side cutouts and an 18 L hose tether reduce mask leaks and allow freedom of movement throughout the night. This is the ergonomically designed cooling pillow that improves sleep conditions for those suffering sleep apnea. (3 1/4 lbs.