He <span>is probably being treated for SLEEP APNEA.
</span>
Sleep apnea is a sleep disorder that occurs when a person stops breathing during sleep. To prevents this patients can use <span>nasal masks, which blows air into the nose while sleeping.
</span>
<span />This can happen a few times of even hundreds of times stopping the whole body from getting enough oxygen.
The answer is true
Hope it helped