I'm a nazi with the thermostat since my body temperature is always messed up lately, lol. So I keep it set to where I can sleep in just a pair of undies, and adjust the thermostat as needed, as opposed to my choice of clothing, hehe.
I would love to get a set of satin PJs though, just a nightie and shorts, and take them for a spin. Not sure I could actually sleep in them, but I'd like to wear them around the house before bed I'm sure. Otherwise, I have a ninja turtles cotton nightshirt I wear around the house sometimes, lol. I love it!