Protein for breakfast. Skip the carbs. No OJ, no pancakes, ... bacon and eggs work great to carry you through the day.
Dark room. I usually grab the hangars from the closet that have clips for hanging pants, etc., and close any gaps in the drapes as best as I can. I've heard of people carrying a roll of duct tape to do a better job, but I don't go that far.
Cool room. Keeping the temperature low helps me sleep.
White noise. If the fan has a manual high setting, I use it. Search for a thread here to change the settings on programmable thermostats some hotels use with motion detectors. If not the fan, try a radio or TV station on a low volume. It's better than being disturbed by the maid conference right outside your door.
No sleep aids. What gets me to sleep is fatigue.
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