Breathwear manufactures a line of CPAP hose covers and headgear that is typically associated with nasal masks to keep the mouth closed while sleeping.  These comfortable accessories are a great addition to Sleep Apnea therapy. 

BreatheWear Chinstraps

BreatheWear Halo Chinstrap

BreatheWear Halo Chinstrap

This chinstrap will help hold your mouth closed while sleeping to avoid pressure leaks.  It can be used with a nasal or nasal pillow mask.