Hi!
You have my sympathy - if DH is away I really struggle to sleep!
I take Atenolol (beta blockers) for a little heart problem I have and I have discovered they are fantastic for dealing with this
Alternatively I just chuck a load of booze down and that usually gets me comatose - BUT - couldn't bring myself to do that when I was the only adult in the house - just in case!
Not really too sure what to suggest - just off to bed myself now
Take care xxx