Side sleepers should look for a small-sized CPAP mask that covers a small area of the face. Such masks are less likely to move out of position during sleep. The whole purpose of using the mask would be defeated, if air leaks through the mask.
Positive airway pressure ventilation methods are often recommended for individuals affected by breathing problems. CPAP stands for Continuous Positive Airway Pressure. The first CPAP device was developed by Professor Colin Sullivan at the Sleep Clinic of the Royal Prince Alfred Hospital in Sydney, Australia. Since then, this technology has been widely used for the treatment of obstructed sleep apnea and other sleep-related disorders.