Sleepy also can not sleep, may be a regular disorder, sleep brain excitation, neurasthenia caused by several factors. 1. Life disorders. Some people’s usual routine is disrupted, due to the influence of the body’s biological clock, easy to cause the body to feel very sleepy, but it is difficult to sleep. 2. Brain excitement before bedtime. Some people drink strong coffee or strong tea before going to bed, easy to cause brain nerve excitation, sleepy, but not easy to fall asleep symptoms. 3. Nervous breakdown. Some people suffer from neurasthenia, there will be sleepy, but can not sleep phenomenon. Sleepy also can not sleep may have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.