You want to sleep when you are getting good sleep. It the sleep is restless and has tense dreams or night-mares, something is not right.

For me, I get the stress dreams when my breathing is not good. My neck position can cause sleep apnea so I have to be careful to sleep on my back with my head supported so it does not roll to the side. If I try to sleep on my side, I need to roll up my pillow so my head does not tip down.

If you wake up feeling rested, get up. Dozing may cause restless sleep.