I tend to shift where I sleep. I not entirely comfortable sleeping in the same room as another person for a long period of time, so this has made having a roommate rather difficult. I tend to alternate between naps on the bed (with at least two pillows, I like something that my head can sink into and I can get my hands between) and sleeping on the couch (in fact, I like sleeping on the couch. Comfy, next to windows so it's cool, and with plenty of cushions for pillows).
Something that's odd: when I'm a little tired and want to grab a quick nab, I tend to fall asleep very quickly (and it tends lasts longer than I wanted it to), but when I'm actually trying to go to sleep for the night, it usually take over an hour to finally nod off (tossing and turning the whole time, trying to get comfy). Don't know why, it';s always like that (no matter the situation).