insomnia, sleep apnea or stress concept. sleepless woman awake and covering face in the middle of the night.

anxiety apnea asleep awake bad bed cant concept cover covering dark depression difficulty disorder dream exhausted exhaustion face fall fatigue fear frustrated girl hand headache hurt insomnia lack lady lying middle migraine night nightmare nightmares pain person problem restless sad scared sick sleep sleepless sleepy stress suffering time tired trouble trying unable unhappy woman worry