I can never have enough sleep, can easily do 12 hours straight, and quite regularly do on the weekends.
I'm not working for the foreseeable future so will be catching up on a lot of sleep, I'm used to 6-7 hours broken sleep a night with a long work day and a two and a half hour round trip to work and back chucked in. Week days were a right off and I spent most of my time before sleep lying in bed making notes on my phone and planning the next days activities at work, I'm not gonna miss that shit one bit.
I used to be able to just switch off when i lay in bed but for the last few years it's been the time when I think and plan the most, i need to start reading books in bed again when I get back to work and reprogram my brain to see it as rest time and not some strategic mapping session with no outside influences.