DD comes in with us about halfway through the night...after her feed she sleeps on my chest, then I turn onto my side still holding her, so she's cuddled into the crook of my arm. She goes on either side - either between me and DH or between me and the co-sleeping crib. I prefer to have her next to the crib, as then I don't have a big gap of duvet making me cold! I make sure the duvet only comes up to just above my waist, and she is in a grobag on top of the covers anyway. Because her head is on my arm, she's not near the pillows, and I can see her face and feel her breathing. She sleeps amazingly well like this, and I am learning to sleep a bit better now, though I was afraid to fall asleep like that at first.