My six month old is an angel for bedtime and daytime naps and has slept through for about 3 months (sorry - not boasting!) He sleeps in a sleeping bag with a blanket tucked in tightly to hold him in place. Occasionally he escapes and shuffles to the top of the cot and wakes, crying because his head hurts, pushed against the bars. Sometimes he goes back to sleep, sometimes I go in and shuffle him back down. Recently he has escaped quite a lot. Will he stop doing this? Not sure what to do. Could get a cot bumper but you have to get rid of them when they start standing so not sure if there is much point.