Sleeping With A Breathing Mask Can Be Challenging* The Breatheasy Pillow Has Notches Cut Out On The Sides For Side Sleepers And A Cut Out At The Bottom To Provide Space For Your Shoulders As Well As Elevation And Support For Your Head * Use The Comfort Of The Poly Filled Breatheasy Pillow As Your Primary Sleeping Pillow With Or Without Your Mask * 28 X 19