I have a Wake Up-Light alarm clock, that helps some.
Also, there was a period of time when I would place my (not a Wake Up Light) alarm clock on the other side of the room and when it started beeping, I'd think "That's my alarm clock. It's on the other side of the room. That would warrant me getting out of bed. Ugh, I'll just sleep through the noise" and I'd fall asleep again. What helped was finding such an annoying sound that I COULDN'T fall asleep again with it going on.