Bath, book, bed
Booktrust, the UK's largest children's reading charity has produced a guide for establishing a bedtime routine for children.
Download the guide from here https://www.booktrust.org.uk/books-and-reading/tips-and-advice/bath-book-bed2/how-to-get-your-newborn-to-sleep/#!?q=&sortOption=MostRecent&pageNo=1