Oh I feel for you. There's nothing worse than lack of sleep and having to go to work.

Any chance you could adjust your schedule so you get more sleep, like going to bed earlier? Baldrian/Valerian works for some, have you tried that?

I know a girl, she uses a special lamp when she gets up, to give her lots of light. She says it works wonders. However, a bright light in MY face would be the last thing I wanted on a dark winter morning, if I was sleepy.

Good luck finding the right solution!