I don't wear any devices at night unless I feel an injury; then, it's usually one of the cock-up hand splints. I don't usually have to wear them for more than a night or two or even during the daytime. I do a lot of pressure point massage to alleviate the congestion which causes the pain, too.
I am a really light sleeper, as in almost always slightly aware of position as I cannot stay in one position for long, so I am very careful of how I stretch out my arms and where I rest my hands. I use a wedge pillow with a memory foam pillow on top of it for my head and neck; sleep on my side, right, mostly. Have a body pillow up against my back, another against my belly and tucked between my knees and feet which helps to keep my lower back in alignment. My hands rest one on top of my hip or draped slightly over my belly onto the pillow whilst the other is almost straight down along my front with my hand cushioned by some of the bedclothes bunched up or a wheat husk pillow I have that lumps up into some great shapes. Rog sleeps with two old lumpy pillows way over on the very edge of the bed and moves accordingly when I start scrunching things around.:-) I'd just spoon up against him, but he is like a furnace and I definitely cannot sleep when I get too warm!**bg** (My girlfriend who went camping with me one time said I was just like a cat, turning, kneading, turning, etc. until finally settling down, then doing it all over.)
Sometimes, I make a small bunched ball of the bedclothes or small towel and placed my hand down on it in the "neutral" position they would be in if in the splints and that is enough to keep them comfy.(So, it's like a small ball in the palm of my hand.)