Horrible sleep patterns.

Lately my sleeping has been...hectic, to say the least.

I've decided to go to sleep at 11 PM daily so that I'm not so exhausted and in time (when I start attempting WILD and what not else) will have the strength for different techniques because going to sleep later I usually feel too exhausted for anything or even sick at times.

But at any rate...lately my sleep has been horrible and I have no idea why. I'm not even attempting any techniques such as WILD and what not, I'm just going to sleep normally and training dream recall in the mornings along with a constant state of awareness during the day and yet just yesterday I went to sleep at 11...couldn't fall sleep for ages. Then woke up somewhere in the middle of the night or really early morning and apparently never fell deeper than just drowziness before having to wake up in the morning.

And the same has been happening every day lately. Horrible interruptions of sleep. Waking up in the middle of the night (which you'd think would be good for dream recall wouldn't you?) and not remembering any dreams and then not being able to go back to sleep...

Anyone have any idea what this could be caused by? :?