Sleep

Worrying about whether babies are getting enough sleep isn't new. The first "scientific" guidelines date as early as 1897, when, in a book on sleep for the London-based Contemporary Science Series, a Russian physician recommended that newborns should sleep 22 hours a day. Throughout the following century, although these suggested amounts declined, recommended sleep consistently ran around 37 minutes more than the actual sleep babies were getting, paving the way for decades of concerned parents.