<unk>  is the vibration of respiratory structures and the resulting sound due to obstructed air movement during breathing while sleeping. The sound may be soft or loud and unpleasant.<unk>  during sleep may be a sign, or first alarm, of obstructive sleep apnea (OSA). Research suggests that<unk>  is one of the factors of sleep deprivation. Pig<unk>
Snoring
Drooling
Sleepwalking
Sniffing 
Hiccup
Night Sweats
Food craving
Cough