3rd Tri and Insomnia

Currently in 3rd tri and baby can come out anytime as said by Doct. But dang, I'm so tired, yet I can't sleep at night. Waking up several times due to back, butt, tummy pain; sometimes even due to my husband's snores. So stressed up now too. Any ideas or tips on how to sleep better? I tried drinking tea etc but it doesn't help.