OP, ask your RE if they are comfortable with the idea of you taking a Unisom sleep tab at night. I took Unisom throughout 2 pregnancies to combat morning sickness (same ingredient as diclegis, which is an anti-nausea medication frequently prescribed during pregnancy). It should help you sleep, isn’t habit-forming, and should be safe.
I’m assuming you are on estrogen and progesterone for the transfer, right? That may be contributing to your issues.

OP here. I think it went okay. It was quick and I was in and out. Thought I would be sleeping better now that it is over, but I am not. I want to cry. I don't know what's happening. Was sleeping well until Monday. I think I am thinking too much about the act of going to sleep and remembering how I can easily fall asleep. Making some changes such as reserving the bedroom only for sleeping.

Drug yourself with benadryl to sleep

OP, how did your transfer go?

Understand that this is almost completely out of your control. I know that is hard…I am a control freak myself, and it was very hard for me to grasp that, even if I did everything “perfectly”, I couldn’t control whether or not the embryo implanted, or even I mplanted in the right spot (one of my FETs ended up ectopic).
Do whatever you can to keep your mind off of it until you test. Go for walks, engage in whatever hobby you have, watch comedies, read a good book, whatever you would normally do to relax and unwind. Good luck.

OP. I want to add that I am seeing therapy.

My transfer is tomorrow, and I couldn't sleep the last two nights. I was up ALL NIGHT. I wasn't even thinking. I tried to nap just now but it didn't work. My first FET failed and now I am kicking myself and praying this one won't fail. I am doing everything I can, taking care of myself, resting, eating well, and adding acupuncture. I was sleeping great but now I can't. Please give me some advice and good thoughts. I should have had acupuncture but scheduled it for the day of my FET. What should I do? Trying to stay calm and including distractions. I just want to sleep tonight.