Yes, feet higher than head, as others have said, and if you orient your body diagonally, you'll be almost flat. Definitely practice at home for a few nights. There are lots of little things that make for a comfortable experience besides warmth. The distance between trees, the height of the hammock, amount of play in the hammock straps, the tarp arrangement (either to block the wind or to allow it to pass through -- they all make a difference.