I had this issue and my dr gave me ambien, reluctantly bc it's so addictive. What I actually found that worked for me was Benadryl. It took a bit to fall asleep but that did help me a lot. Also some ppl mentioned melatonin I've heard that's a good one too. Seroquel made me too zombie like I was like a different person like a walker. But that doesn't mean it won't work for you. Everyone is different. Good luck I think we all know how infuriating lack of sleep is and it's important for our recoveries.