Handy card room thermometer A room thermometer is essential for measuring the temperature of your little one's room so you can make sure they have the right amount of bedding for a comfortable night's sleep. The clear, at a glance, colour coded display allows you to see the temperature of the nursery so you can dress your baby's bed accordingly Manufacturer holds the ISO 13485:2003 world standard certificate for their thermometers. Foundation for the Study of Infant Deaths (FSID) recommends that a child sleep in room temperatures between 16C to 20C with 18C being just right