Our 18 month old is on one nap and has been for a few months. She has started waking early, taking a while to go to bed at night and having short naps (often just half an hour). Obviously all of that together likely means overtired (although that shows in hyper behaviour nearing bedtime). She started last week doing two mornings at nursery which is the first time she has been properly left (other than with her grandma at times) and she is finding the separation difficult and is crying lots at nursery. I know this is normal (my son was the same and now loves it) but I just wondered if the nursery thing might have affected her sleep. If not that what else? She is far too young to drop the nap surely and falls asleep for it within a few minutes so obviously wants it. Any thoughts? She runs around like crazy and is a major climber so must be exhausted from her always on the go nature.