The baby sleeps upside down corrected by keeping the bedroom brightly lit during the day, playing with the baby more during the day, and not interacting with the baby at night. 1. Keep the bedroom bright during the day: keep the bedroom bright during the day, when sleeping, as long as the light does not directly irradiate the baby’s eyes can be. 2. Play with your baby during the day: play with your baby during the day when he or she is awake, and wake him or her up if he or she sleeps for more than three hours. 3. Don’t interact with your baby at night: before your baby goes to sleep, dim the bedroom lights and keep the room quiet to create a good sleeping environment and improve your baby’s quality sleep. Don’t interact with your baby when he or she wakes up at night, and try not to wake him or her up at night.