alarm clock ringing.woman waking up in early morning for work.obstructive sleep apnea effects.mental stress sleep depression.

alarm alert annoyed apnea asleep bed circadian clock daytime deficiency delayed depression deprivation difficulty dream early emotion exhausted fatigue groggy hour hygiene inertia insomnia job melatonin mom mood morning night oversleep overworked parasomnias parent phase problem rhythm ritual routine sleep sleepiness sleepy snooze snoozing stress sun time tired unpleasant wake