I second SAM on this. My son has bad eczema and we have had to use the natural detergents (which are much better for the environment, as it is) to prevent irritating his skin. I was shocked when I looked into detergents and what's in them, and how they actually kill fish/other animals, downstream. Someone on here (BFS Burger) posted about putting a bar of soap in your bed to help with restless leg syndrome, which I didn't believe until I googled it and saw how many people it seemed to help. So there might be something to the "environment" of your bed. But ML's comment about the cortisol could be true too (although mine is high during the night, it's low in the morning - when I had it tested). Or the way you breathe during the night, etc. I'm guessing there is a solid reason why you twitch much more in the morning, just not sure what it is. It's worth exploring all the above.