I use 2, but I curl up in my sleep, so the one pillow is just lying there a few inches above my head being useless, but the pillow I use is diagonal so I can hug a fraction of it, but still have it on my head. =P And it's all complicated. o__O
I sleep with 2 pillows under my head. I got into this habit a few years ago when I had to get my wisdom teeth pulled out. I had to keep my head elevated in order to sleep properly, in addition to taking Vicodin for the pain. Even after I fully recovered, it just felt so nice having 2 pillows under my head, I just kept sleeping that way.
it's summer in Australia so i sleep with one pillow and my doona under it and my hands sandwiched between them.
I used to sleep with 3 pillows but then I eventually got down to 2 pillows and I can sleep with 1 if I have to but I like 2 pillows..... so basically I sleep with 2 pillows
sometimes I take pillows out of the living room for a more comfortable night... ... yes we have pillows on the livingroom