I personally need 2 pillows underneath my head and one between my legs to fall asleep. I actually have a full body pillow that I slip between my legs. My husband only needs one pillow but can also sleep without pillows. He doesn't really care. If I don't have all 3 pillows it will take a long time before I finally fall asleep. I'll be tossing and turning 'till I wear myself out. How about you? How many pillows do you need to fall asleep?