Most days I'm in bed (and asleep withing 5 minutes) at 22:00 and awake at 05:30. I'm over 60, 7.5 hours sleep is just right for me. I have a one-hour commute each way and usually leave home at 06:45 and arrive back around 18:00.
It doesn't matter what time I go to bed, my eyes pop open at 05:30 and I have to get up (a) to micturate (did I mention I'm over 60?) and (2) feed the cats. The latter have trained me using medieval methods. When I was younger I would sleep as late as I could: my record was sleeping in until 16:00, and boys oh boys did that cause me to feel wretched.
It doesn't matter what time I go to bed, my eyes pop open at 05:30 and I have to get up (a) to micturate (did I mention I'm over 60?) and (2) feed the cats. The latter have trained me using medieval methods. When I was younger I would sleep as late as I could: my record was sleeping in until 16:00, and boys oh boys did that cause me to feel wretched.