Also, be careful when putting an infant in a new bed or a new sleeping position: A strange situation can cause him to squirm around, which raises the risk of being smothered in bedding.

• 把婴儿放在新床上或变换睡眠姿势时必须小心陌生环境会使婴儿扭来扭去，从而增加被褥妨碍呼吸的危险。