Life without sleep aids

Sarah
I have been taking Tylenol PM for years and now I can't because I am in my first trimester. 
1. Sleep is a big struggle. I wake up wide awake at 3 am and can't fall asleep until 4:30 most nights. 
2. I am exhausted during the day, but my husband thinks napping will make my sleep problem with worse. 
Any tips or ideas?!?!