Ms. Song has been particularly annoyed recently because in the past month, the little one inexplicably fell in love with sleeping naked and was prone to getting chilled at night. Many mothers are racking their brains over how their children sleep. However, in the eyes of experts, if the baby is already of preschool age, then no matter what, ways must be found to let them sleep separately from the adults. This is conducive to cultivating their ability to live independently.