Bluemountains,

What I now take for sleep is Amitriptyline in low doses. It is a very, very old tricyclic AD. It is not addictive. Provided you take at least something for mania, you should be OK taking it. Ask if your doctor would be willing to let you try it. She may be surprised, because she may not have prescribed this medication in many years, but it is worth a try.

I also cannot function without enough sleep.