You know what works for me? I start coming up with as many baby names I can for each letter. Once I get to around g-h-i I am almost always asleep.

Kinda like counting sheep!
Or just give in and know you aren't going to sleep tonight. Pop some popcorn, pick out some good movies and plan on making it an all nighter on the couch. You will be asleep in no time.
I can't wait till you come on tomorrow with u/s pics and answers to the spotting and can relax. They can sometimes see on u/s what is causing the spotting. I know with my daughter they could and that was 13 years ago!
Lots of sleepy vibes coming your way