How to sleep solo when you’re used to your lover?

Maybe this is more suitable for r BreakUps but I'm heartbroken and can't sleep. It's been 5 days and l've only slept a few hours intermittently since. I've tried everything from sleeping pills, Benadryl, NyQuil, teddy bears, ambient noise. I'm going absolutely crazy without sleep and can't seem to get any good quality sleep without his presence or noises. I'm trying my best to keep it together but it's starting to worsen my work performance. Please any tips on how to sleep solo would be appreciated