The normal sleep time for an 8-month-old baby is about 14 hours a day, but there are some individual differences that need to be analyzed on a case-by-case basis. The specific sleep time and habits of 8-month-old babies vary from person to person, but most of them stay around 14 hours, with a minimum of usually not less than 12 hours, including about 10 hours of sleep at night and 1-2 hours each in the morning and afternoon during the day. Individual differences are relatively large from baby to baby, and as long as sleep does not affect normal development, it is normal. Some babies have too little sleep time and poor sleep quality, which may have some impact on growth and development, so they should go to the pediatric department of the hospital in time to clarify the cause, so that effective treatment and guidance. Parents need to let their babies feel the difference between day and night when they take care of them so that they can develop their biological clocks and develop the good habit of going to bed on time.