I'm sorry you are having to ride this nasty rollercoaster. As has been mentioned - the "ups" of hypomania are really not worth the downs that follow.
The cycle needs to be broken, probably through the use of a good med combo. I battle to sleep while I'm hypomanic.
I also use Zopiclone, but it stops being effective if used too much (I took 3 the other night, and after 2 hours, I had to FORCE myself to fall asleep)
When I went to bed the following night without Zopiclone, I could not fall asleep. ANd I'd keep waking up in the middle of the night. Please be careful of this drug. I went through a few days of withdrawals - battling to sleep and then waking up with nightmares.

Try get a decent night's sleep if possible. Speak to your pdoc regarding anything you battle with, where you feel he ought to have a possible solution.