I get it form time to time.
Sometimes it's one night.
Sometime's it goes on for days.
I got again last night
It freaks me out to open my eyes and look at the clock to see 1am, then 2am and 3am.
knowing I have to get up at 5:30.
This happens more than I'd like.
My ultimate vacation would be to go somewhere ridiculously expensive with an awesome bed, by myself, and sleep for four days.... maybe five.