Common Adult Sleep Disorders

Sleep apnea
Brief interruptions of breathing during sleep. Most often signaled by excessive snoring, gasping for air, morning headaches and dry mouth. 

Insomnia 
A persistent inability to fall asleep or stay asleep. 

Narcolepsy
Uncontrollable sleep attacks during the day. 

Periodic limb Movement Disorder
Excessive leg movement during sleep, or pain or crawling sensations in your legs while falling asleep.