My waking times definitely skew, but for me I think it happens because my bed time pushes it later and later until my night owl habits and my guilt over sleepin

My waking times definitely skew, but for me I think it happens because my bed time pushes it later and later until my night owl habits and my guilt over sleeping late reach an equilibrium. When I was in college I'd pretty quickly drift to a 4:00AM to noon sleep schedule on holidays. Even today (in my mid 20's) I find I'm happiest sleeping from roughly 2:00AM to 10:00AM.