Well, only because of the hot weather, but I know what you mean. Usually it is exhausting when something similar happens, but this time not.

My sleep rhythm was totally different last night. I slept from 8pm till midnight, was up for a while and then went back to bed. Maybe I just had enough sleep before that.

I actually feel best in the morning when my sleep was light. I also recall more dreams.

Cheers,
Oliver