My lo can pull herself up to stand a few days before she turn 7months, currently she's 7.5mths & this new milestone is disrupting her sleep. She used to fall asleep soon after we put her down but she will now take about an hour standing up at the cot while we put her down repeatly until she eventually gets tired. I am now worried if it's appropriate for her age to be standing up so often.she is able to pull herself up, stand inside her cot & move around the cot while holding the cot rail, will it affect her hip development since she is still so young? Should I be concern? Any advice would be appreciated. Thanks.