When I was employed full time and such, I slept in on weekends only and only gained maybe 3 to 4 extra hours of sleep in those two days.
Lately...
normal day with no work of any kind...
Normally I get up at 7am, busy by 8am, go to sleep at 9pm wake up once to use restroom maybe 1/3 of time.
Normal day with job...
wake up at 5am, leave for work 7am get to work 8am, work till 5 or 6pm, get home 6 pm, get to sleep 9pm, repeat
these days with nothing to do but get a job...
wake up between 7am and noon.
get to bed 9pm till 1am.
max sleep is 14 hours
min sleep is 6 hours or 0
average sleep is 9hours, and it has been that way since I have been very young till now.