Sleep - Mission Impossible?

I'm going through another of my 'can't sleep no matter what' phases. I've had insomniacal episodes ever since I was a kid and there was a time I could go for weeks without proper sleep and still function well. I have a whole sleep cycle thing going on 

sleeping soundly
sleeping lightly
not sleeping but fine about (means more reading gets done)
not sleeping and a little frustrated
not sleeping and grumpy (doesn't last for too long)
not sleeping and incredibly dippy (my brainpower dips dramatically during this time)
not sleeping and too full of life (I know I am incredibly annoying in this phase)
 not sleeping and zombie like (can last anything from a few days to almost 2 weeks)
sleeping lightly
sleeping soundly

I've tried almost every remedy there is and have decided that when I cannot get to sleep, I am not meant to. When I do sleep well, I usually dream well too. I have the most vivid dreams, which KT and others have told me are freaky and/or scary, but I am rarely bothered by them. What I have discovered though, is that my dreams time beautifully with the alarm. They always stop as I am waking up and always with enough time for me to get up (and go for a wee :oS) before the alarm goes off. If I get woken up during a dream - the phone, the door, kids etc., I can get incredibly grumpy for the rest of the day. I need closure on my dreams, even the ones I have had before and know the outcome and being taken out of them turns me into a vile creature for at least the first two or three hours of the day.

I'm sat here watching the clock race towards 2am. It wont be 2 then, but 1 - there have been times when we've completely forgotten to change the clocks when BST has started (it always ends near my birthday so that is usually no problem) and then been late for something, but most of the time people haven't noticed (KT is well-known for being late - he's called the White Wabbit, it's great to have an excuse!) 

If You Haven't Already, Fall Back