One year old babies typically sleep for about 12 hours. One-year-old babies’ sleep has gradually become regular, and the length of sleep is usually around 12 hours. However, as sleep is affected by family, environment and other factors, there are individual differences. Some children may be longer, some children may be shorter, the overall growth and development of no abnormalities do not need to worry, indicating that the child’s sleep is enough. One-year-old baby daytime sleep time gradually become less, most of the sleep time at night, you can give the baby to create a good sleep environment, daytime can be appropriate more activities, more conducive to sleep at night. If the one-year-old baby sleeps significantly less or more, it is recommended to take the baby to the hospital for examination in time.