This pillow is definitely for the person with sleep disordered breathing or obstructive breathing. It will not effect your nasal passages. It is for the person with snoring, or mild, obstructive sleep apnea. It helps to assure a restful sleep and better breathing. Better breathing permits more consistent, healthy delivery of oxygen to the brain, heart and other important organs. It is comfortable, adjustable. It is intended for use while sleeping on your back, however, many users have found that they can turn slightly onto the side and still be comfortable. Contact your doctor if you feel that you might have obstructive sleep apnea. There are many therapies available. This pillow has been FDA approved as one of the available noninvasive therapies.