Putting a child to bed at 7:30 pm doesn't mean they'll be asleep by then. Many parents say bedtime routines take ages—bath time, a story (or reading), and then waiting for their child to drift off. An hour later, they check in and find their child still wide awake!

Jake was four years old when his parents asked a psychologist to observe him at nursery. At home, he was playful and communicative, but at nursery, he remained silent..