Mask leaks can be annoying, especially if they make so much noise you can't fall asleep! One possible cause could be the presence of human oils and sweat on your face, creating a slippery layer between the mask and your cheeks. RemZzzs Mask Liners absorb the sweat from your face, eliminating the problem, and making it easier for the mask to create a good seal. Additionally, a little softness can go a long way in making your CPAP experience more pleasant. Added softness from RemZzzs can help take the discomfort out of your silicone mask, making it feel gentle to the touch, and ultimately less "medical". If you have a full face mask that uses a forehead pad, you may be experiencing skin irritation and redness. The RemZzz Mask Liners include a fabric wrap for your forehead to help reduce red marks and softening the feeling of silicone on the head. The mask liners are meant to be disposed of and changed daily, and each package of RemZzz contains 30 liners. You'll also get 2 forehead pads that are meant to be changed every 15 days.