There is no such thing as “the best” bedtime for a three year old child, it is suitable for the child’s growth and development. In general, because of the physical and intellectual growth and development needs of three-year-old children, sleep time every day to maintain in 10 hours ~ 13 hours or so the best, according to individual differences slightly different. Three-year-old children belong to the important stage of rapid physical and intellectual development, to ensure adequate sleep for children’s physical and mental development is very important, it is recommended that the daily sleep time to maintain in 10 hours ~ 13 hours or so, which can sleep 1 hour during the day ~ 2 hours, but do not be too long will affect the quality of sleep at night. Because three-year-old children in the night sleep will produce a lot of important growth hormone, every day to ensure enough sleep time, it is recommended to develop the habit of going to bed before nine o’clock, and do not carry out sports or other enhancement of children’s excitability behavior before sleep.