Best sleep yet...

Mandi
So not sure about any of you, but I am currently 10w +2, and I have not had a good night sleep in what seems like weeks. Tossing and turning all night long, waking up at 3 or 4 am, only to have my alarm go off at 6!
I have been exhausted!!!
Last night however, I slept right through until my alarm went off. It was fantastic! What changed might you ask?
Sex!!! 
My husband and I have been having it usually in the morning, but last night we did it before bed. I woke up feeling refreshed and ready to go for the day.
How about anyone else? Has anyone found something that has helped them through the sleepless nights?