A member asked:

Can a stuffy nose throughout night cause oxygen deprivation? i go to sleep with a little stuff nose and wake up with stuffy nose after 10 hours.

A doctor has provided 1 answer
Dr. Gary Richardson answered

Specializes in Sleep Medicine

The nose knows: Your stuffy nose, while a nuisance that can cost you a good night's sleep, is no threat to adequate oxygenation. The physiologic drives to maintain adequate oxygen levels will cause you to breathe through your mouth if the nose is obstructed. This is why you wake up with a dry mouth as well as a stuffed nose.

Answered 1/12/2018

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