The innovative grobag egg™ changes colour to let you know at a glance whether the temperature of a room is too low, too high or just right. Grobag egg was awarded 2006 Nursery Product of the Year, Australian Toy, Hobby and Nursery Fair. A yellow glow suggests a comfortable temperature for children to sleep in, whilst a blue glow suggests it's too cold and a red glow suggests it's too high. Easy to understand colour coded system indicates room temperature. Digital thermometer with permanent 'back-lit' LCD readout. Gentle night light instructions and safe sleep guide enclosed.