Like what Dragonfly said. When hypomanic I get alot done I sleep maybe every second day. I feel happy euphoric , I am still in control in a way. When I am manic i sleep maybe every fourth night, the thoughts become so fast they are only fragmented thoughts which leaves me very low functioning, extremely unproductive. I become so mentally agitated that I can pace 17 hours on end, my mania usually takes at turn where I do not feel good at all, like I can feel myself losing self. It feels scary. I also get hallucinations and delusional. Not at all "fun". I hope that helps a little.