It's very dangerous to fall asleep with her in your arms. Her sleeping next you you (safely) on a bed would be safer than in your arms.
The tools if getting baby to tolerate being put didn't are:
- swaddle (tight around shoulders)
- dummy
- slow, calm movements
After a feed lie baby in yge centre of a long, thin price if material (cut up an old sheet, for example. About 1.5m by 50cm). One side of pulled tightly over one arm/shoulder, under baby's bottom/back and up the other side. Repeat other side.
Lift baby onto your shoulder and rub/pat until you get at least 1 burp.
With baby swaddled and on your shoulder, bend at the waist over cot. Keep baby in position, not moving away from your torso, until you are hoovering horizontally over the cot mattress, holding baby against you.
Lower baby last few cm onto the mattress. DO NOT MOVE. Stay with your whole body a few cm away from baby, as you were when first puttinh baby down and put dummy in baby's mouth for comfort sucking. Keep your face close your baby's so he can hear and feel your breath.
Put your hand on baby's chest and slowly, very gradually lean away. Your hand stays to provide the reassuring touch. Tap the outside of the dummy to encourage comfort sucking.
After a few minutes baby may well stop sucking and relax the muscles of the mouth. As dummy goes limp in the jaw, gently remove dummy, slowly remove your hand and sneek away ninja style.