Tired of not sleeping 😭😴 HELP!!

I am 19 weeks pregnant, and for the last few weeks I have been experiencing AWFUL insomnia. Every little sound at night keeps me up, and sometimes I end up staying awake until 8 am then sleeping all day. Even the sound of my husband breathing right next to me is driving me nuts. I can't take it anymore, it's stressing me out so much. 😩 Is Melatonin safe to take before bed? I'd rather not have to resort to Benadryl. What are some good supplements to help with insomnia??