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Welcome to the Infant Sleep Information Source

This website presents research evidence about biologically normal sleep for human babies. We discuss how infant sleep may vary due to cultural behaviours and expectations such as what babies are fed, where they sleep, and how we interpret their needs. This information is for a) parents who wish to make informed choices about infant sleep and night-time care, b) health professionals who wish to share evidence-based information with parents about infant sleep.

ISIS does not address clinical sleep problems or provide individual sleep advice and parents should contact a health professional with any concerns about their baby's health. For information about the organisations and funding that support ISIS please see 'About Us'.

New (Free) Infant Sleep App from ISIS

The Infant Sleep Info App provides key information from the ISIS website in a handy format for mobile devices. Covering normal sleep development, sleep location and sleep safety the familiar info from the website is delivered in smaller chunks.

Download free from UK Apple Store (in other countries search for Infant Sleeplab and look for baby icon)

Two new features are exclusive to the app

  • A bed-sharing decision tool guides parents through the key considerations for safe bed-sharing, and explains when bed-sharing may be inadvisable and why.
  • A sleep log tool helps parents track their baby’s sleep, displaying this info on a chart depicting the range of normal sleep for infants of different ages to provide reassurance!
Read more
Last modified: 17th November 2015