Monitor your most valuable possession wherever you are. Rest assured that your baby's most important functions are always monitored and available on your smartphone. Get a complete picture of your baby's sleep behaviour: Track more than just normal sleep patterns, including naps, heartbeat and blood oxygen levels. Get daily sleep reports based on customisable sleep tracking sensitivity. Know when you are needed: Receive instant alerts when your baby's key functions change or sock is removed d. Customise the alerts you want to see for a personalised parenting experience. Optimised for accurate data and reporting: Get tailored tracking and reports on your baby's sleep patterns with optimised algorithms and a Fresnel lens. View important data such as heart rate and blood oxygen levels for the last 48 hours. Comfortable and easy to wear from 0 to 18 months: The Smart Sock is stain-resistant, flexible, soft and washable and available in three sizes to grow with your baby.