27 hours.

I slept for literally 24hrs one time when I was a kid.

I have a hard time sleeping more than 8 hours normally, but when I am sick I know i have slept for 12+ hours on more than one occasion.

I think maybe 10.

No idea. Not like I have something that times how long I actually sleep. How long have I laid in bed trying to sleep/sleeping on and off? Most of a day. Like seriously. But mostly I only "sleep" for a few hours at a time then wake up and shift position and go back to sleep etc.

12-14.. not sure. Must have been sick or depressed at those times.

18 hours

Not sure because most of the time I don't sleep through any given sleep period. I wake up a bunch

I think it was 20 hours but just once

Coming down off acid I have slept for damn near a day