If you sleep on your side or tend to breathe through your mouth at night, the AirFit F30 full-face CPAP mask is designed with you in mind. This innovative design comes with a medium-sized cushion that rests below the nose, not across the bridge, which prevents the redness, irritation, and soreness caused by over-the-nose type masks. The overall construction is lightweight, compact, easy to use, and created to provide maximum comfort. Another top feature is the clear field of vision this mask provides, allowing you to also wear your glasses or watch TV in bed. Plus, it reduces feelings of claustrophobia.