The specific common reasons for 2 year olds tossing and turning in bed at night are as follows: 1. When suffering from diseases such as the flu, the child will toss and turn due to respiratory secretions blocking the airway and poor breathing. 2. As the child eats too much before bedtime, the spleen and stomach are not particularly well-functioning and there will be abdominal distention and discomfort, so they will toss and turn. Try not to eat before going to bed, or do not eat within 2 hours before going to bed. 3, common are vitamin D deficiency leading to plant nerve dysfunction, will cause children to sleep tossing and turning, and even cry during sleep, or easy to wake up performance. 4, vitamin D deficiency will also affect the absorption of calcium, children because of calcium deficiency will have the phenomenon of night sweats, head discomfort will rub back and forth, will also be manifested as Tossing and turning while sleeping.