A free app to improve children's sleep, the 'Kids Sleep Doctor' has been launched by doctors at London's Evelina Children's Hospital. Professor of children's sleep medicine Paul Gringas has worked in the fields of sleep medicine and neuro disability for over 15 years, investigating the relationship between lack of sleep and children's mental and physical development. He talks about the perils of technology before bedtime and the benefit of an afternoon nap.
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