I used to sleep DD1 with the head end of her cradle raised, and then used to try to make sure her head was to one side - in the early days that worked but once she got better head strength obviously she moved it when she wanted. During the day when I was around I slept her on her tummy like Em says. Was too nervous to leave her like that at night though.

I know a few people who get those snuggle cushion things and alter them so their babies sleep on their sides. Not sure about SIDS issues with that sort of thing though?