What time did you go to bed? I sometimes wake up too early if I am too good at taking my vitamins :-) The B vitamins do give me more energy and often I wake early and ready to go.

Do you lay there and try to go back to sleep for any length of time or doze, etc. at all? Sometimes I get up, pee, go downstairs and have a "snack," (usually my Activia yogurt) adjust the temperature, maybe use my inhaler/make sure I get kinks out of shoulders and can breathe freely, and then try again. I do worry that that will be too "helpful" and become habit instead of sleeping later regularly. Other times I get up and "work" for a couple hours and wait until my husband gets up then go back to sleep so I can have the bed to myself without snoring :-)