About one-third of a person’s life is spent in sleep. Long-term poor sleep quality, easy to cause upset, fatigue, and even headaches, dreams, excessive sweating, memory loss, but also can cause a series of clinical symptoms, and induce some psychosomatic diseases. Adequate sleep, balanced diet and proper exercise are three health standards recognized by the international community, and March 21 every year is “World Sleep Day”. To ensure good health, we must first change the bad habits that undermine healthy sleep. What are the bad habits of sleep? 1, angry before going to bed, 2, slightly drunk to sleep, 3, before going to bed with a full stomach, 4, before going to bed drinking tea, 5, before going to bed with strenuous exercise, 6, with make-up to sleep, 7, with a bra to sleep, 8, with ornaments to sleep, 9, pillow is too high, 10, pillows sleep with their hands, 11, sleep with their heads covered, 12, sleep with their mouths open to whistle, 13, sleep with the wind, 14, sit and sleep, 15, the two of them relative to each other to sleep, 16, sleep with their shoulders exposed. Healthy sleep need to explore our own, how to improve the quality of their sleep, but also to each of us to feel the life of the little by little, personally to feel the real sleep life.