I sleep biphasically during most weekends. Partly because I work and work-out a lot during week days. By the time it's Saturday, I'm both mentally and physicall

I sleep biphasically during most weekends. Partly because I work and work-out a lot during week days. By the time it's Saturday, I'm both mentally and physically exhaust. So, I need more resting and sleeping a few hours after lunch works well. In order not to make my sunday night hard to sleep, I sleep a bit less (6 to 7 hours) and then sleep a few more hours (~3 hours)