Never had a problem sleeping but always like to stay up late. I've always been a nigh owl. When I used to work 3rd shift I would start at 9:30 pm and some times wouldn't leave till 7pm the next day. lol
Of course once I sat in my car to go home all my energy was gone. Made for some exciting drives home!
Then once I got home I was always wide awake. Till I laid down. Then I was out cold.