[anigbrowl]

I don't want to make armchair diagnoses, but based on my own experiences it's worth seeing someone about that if it's happening frequently.

[homeomorphic]

It's been like this all my life, or as long as I can remember. The waking thing doesn't happen too often - once a month or so - so it's not a big problem. Thanks for your concern, though.

[ldng]

Well maybe you should embrace it then. Wake up, focus on doing something and back to sleep. After reading that article, I would definitely try that.