I've kept a sleep pattern of 4-5 hours by accident, and I don't seem to function any less efficiently than when I sleep 8 or more hours. I do end up taking a na

I've kept a sleep pattern of 4-5 hours by accident, and I don't seem to function any less efficiently than when I sleep 8 or more hours. I do end up taking a nap on occasion, but that's still 6-7 hours, not 8.