Getting my 8 week old to sleep is a pain - she has to be rocked on chest. Driven in car or pushed in pram - swing or bouncy chair no good -,she just screams in them if tired. I CAN'T leave her to cry but the problem with all the methods I use is that as soon as movement stops she usually wakes up. Please help me as I have a poorly 4 and 2.5 year old.