my 10 week old was very unsettled initially and wouldnt sleep unless she had her dummy and white noise, and even then it took ages to get her to sleep. she seemed to be improving but is now worse than ever, and getting totally over-tired. I have tried putting her down as soon as she yawns, but it often doesnt work. she is tired and goes down at around 7pm but is awake again within half an hour and up all evening, and often a lot of the night.she will settle in a sling, and likes her swing, but when I try to put her in her cot she yells. I had thought this would improve with time, but it isnt - help! I keep hoping she'll find her thumb and learn to settle herself. any tips?