睡觉前的准备。睡觉是主要的休息方式，身体运动和思维活动处于相对的静止状态。为了睡好觉，睡前应洗澡、洗脚，不宜过饱，不要喝茶，不要喝咖啡，不吃巧克力，内衣应宽松，枕头高度和软硬要适度。睡眠的时间。睡眠时间的长短要根据各人情况而定。根据年龄不同，大致有相对的 Preparation before sleeping. Sleeping is the main way to rest, physical exercise and thinking activities in a relatively quiescent state. In order to sleep well, bedtime should be bathing, bedtime, should not be full, do not drink tea, do not drink coffee, do not eat chocolate, underwear should be relaxed, the height of the pillow and soft to moderate. Sleep time. Sleep time depends on the circumstances of each person. According to different age, roughly relative