I remembered that I had a CD called Inward Harmony by Marcie. Luckily I managed to find it without any difficulty. I played it very quietly all night. I slept without the anxiety of work scenarios.
I think its a similar kind of CD to the one you mentioned Kat.
Ionisers - I already use, they are great, daughters boyfriend allergic to loads of stuff and sneezes all the time - not at my house anymore.
Herbal teas can take a bit of getting used to, I was recommended lime blossom - it tastes foul.
Apart from the odd power surge I'm not too warm in bed.
A friend swears by melatonin, but I don't think you can buy it in the UK
Thanks for all your input, even though there are quite a few threads on this subject, its very personal when it happens to you. You cannot see a solution, just coming out in the open and admitting it kind of exorcises it,