What do we need to think about before leaving baby at the nursery for the first time? I am confident in the level of care provided, just a little unsure how things work regarding DS's irregular eating and sleeping times, also interaction with other children. So far we have fed him and played with him and organised his naps and longer sleeps by his body clock and not according to our scheduling. He will be about 12 months old when he goes to the creche for the first time.