Hi! I'm BP II as well, with a side of migraines. I use imitrex quite successfully, but for sleep, I've had to go with seroquel (when it's really bad) or ambien (when it's only moderate).

Seroquel will also help snap the manic cycle, although it really makes you sleepy. Like you've been hit by a ten-ton truck. But I take half a 25 mg and it will let me sleep like nobody's business and still wake up in the morning.

Hope this helps.