Sleep Trainer Davy. The eyes open and close. Davy's eyes close before bedtime and open in the morning when it's time to get up. The desired times can be set. It is also possible to adjust the length of the sleep period, such as for a nap. Analog and digital time. Easy for children to learn and understand. Alarm clock. For older children, there are three sounds to choose from with adjustable volume. Adjustable brightness and automatic shut-off. The dimmable night light can stay on continuously or turn off by itself after 5, 15, or 30 minutes. Davy, the dog, is a sleep trainer, night light, and clock all in one. He comes from ZaZu. Davy operates with a USB mini adapter or batteries. Details: indicates when it's time to sleep and wake up, time display in analog and digital, includes alarm function, with color change, adjustable brightness, with timer function (5, 15, 30 minutes). Suitable from approximately 3 years.