I do love a good placebo but am sadly a bit too cynical for it too work all the time!
It's something I tried while suffering really bad insomnia during pregnancy along with many other things and (for me) it did make a difference. Have you tried it or do you like to assume nothing works?
I'm sorry if I was unclear I meant that I didn't have much hope for it! It took me a while to get used to it, as it really is a different sensation but after the first couple nights I saw a vast improvement. I have friends who have also used the sheet but for them it had the opposite effect. Hence the interest if anyone else has tried it.
There is scientific method behind and I have included two links one that supports the idea and one that tears it apart (for objectivities sake).
I am not trying to convert anyone I was intrigued to see if others had had similar experiences and to say that I found it very helpful. Why, may I ask, do you have such a dismissive attitude to something which you have not tried?