Oral appliances such as mandibular repositioning device have a significant role to play in treatment of snoring and sleep apnea. Discreet, easy to use and custom-made for comfort, Narval CC is a clinically-proven alternative to CPAP.* And unlike other oral appliances, it’s custom-manufactured by a sleep therapy expert that has been designing and developing innovative solutions to combat OSA and related respiratory conditions for the last 28 years.