Adjusting to the mask for a continuous positive airway pressure (CPAP) machine can be difficult. If you or someone you know is having difficulty, St. John's Sleep Center can help. Our PAP Naps are shorter evaluation sessions that provide education, as well as a professional, to give advice on what kind of mask will work best for you. These two- to five-hour sessions at the Sleep Center allow participants to "nap" with a mask on in the facility. A physician referral is needed for this service.