First, health conditions, if your recent health is not good, suffering from certain diseases cause you to worry or physical discomfort, then certainly is not good to sleep or simply can not sleep.

Second, mental stress, nowadays people are particularly stressed, some people put a little bit of things in the heart is easy to insomnia, constantly thinking about what happened during the day or worry about tomorrow's difficulties, but also easy to cause insomnia.

Third, too excited before going to bed, some people are commonly known as night owls, always like to go to drink or karaoke at night about three or five friends, too excited to cause your nerves have been in a state of jumping, which will definitely affect your sleep quality.

Fourth, eat too much before going to bed, do not eat the best at night, a thousand years old saying people have to abide by it, but not many people abide by it. Either eat a big meal 3 hours before going to bed or hold out until bedtime is still chewing snacks, your stomach is not resting at all but is used by you to work, will certainly lead to uncomfortable sleep, poor quality of sleep.

Fifth, sleeping environment is not good, if you sleep in a noisy environment, or too cold and too hot will make you sleep not solid, thus affecting the quality of sleep.

Sixth, whether too much sleep during the day, many people nap too long. Now there are still some college students a weekend in bed, daytime sleep, certainly not sleep at night.

Seventh, easy to dream, some people fall asleep quickly, sleep for a long time, but feel that they are doing strange dreams all night, even nightmares. This leads to grogginess the next day, which will not lead to a good quality of sleep either.