Liran Oren, Ph.D., (left) is shown with Ephraim Gutmark, Ph.D., and Ann Romaker, MD, and the VortexPAP device. Nearly 40 million Americans have obstructive sleep apnea, according to the Council on ...

Loud snoring at night. Pauses in breathing followed by gasps for air while you’re asleep. Excessive daytime fatigue. Frequent nodding off in front of the TV or even when behind the wheel of a car.

Medically reviewed by Anju Goel, MD Key Takeaways AutoCPAP therapy adjusts air pressure to help keep your airway open during sleep.An AutoCPAP machine increases the pressure when it detects blocked ...