Hmmm, it definitely depends on the state of mind for me. Orgasms generally induce sleep, but sometimes I start talking nonstop with happy thoughts when finished, I guess it's hypomania. I wouldn't be able to depend on orgasms for sleep.

As for sleeping, I consider it a good night when I get 7 hours of uninterrupted sleep. I sometimes might get 8 hrs. on the weekend, but I can't remember the last time I was in bed, sleeping, for 9 hours!

A walk is a great thing, if not for sleeping, at least to clear some of the anxiety. Worrying might also interrupt your sleep, so try to relax Hammy!

Bluemountains