I don't know why but whenever my husband works 10-13 hour shifts, I just can't fall asleep. I've…

I don't know why but whenever my husband works 10-13 hour shifts, I just can't fall asleep. I've been laying here for hours and no luck of sleeping. Hate when he has to work a lot in order for us to make our bills. Next month our bills go down a lot and I can't wait for him to go back to 8-9 hour shifts.