There can't be any sound. People in these constellations sleep very lightly.

Sleep problems have been bothering many people, and for some people, it has even seriously affected their lives. Shallow sleep is one of the problems. Even the slightest sound will wake them up after they fall asleep, so they have very high requirements for sleeping environment. Among the twelve constellations, there are these ones, which have the characteristics of shallow sleep. Let's get to know each other. Taurus: Taurus with sensitive ears Most people have very sensitive ears. After entering the sleep stage, they will be easily awakened by a small sound, even if it is really small. Excessive sensitivity of hearing leads to their shallow sleep symptoms, and sleep is often affected by little noise, which always leads to poor sleep. Cancer: Natural light sleep For most cancers, a big cause of light sleep symptoms is often not acquired, but congenital. Some people are born with symptoms of shallow sleep, and they can't hear any sound that affects their rest when they sleep. Once they hear it, they will easily wake up and never fall asleep again. Therefore, this has become a headache for them. Leo: Special physiological structure Some Leo's situation is very special. Their ears are not very sensitive at ordinary times, but when they go to sleep, their ears will become extremely sensitive and their hearing will become several times that of the original. So they often wake up in the middle of the night for this reason, and this physiological structure also seriously affects their sleep quality. Sagittarius: You have a keen hearing. Most Sagittarius's auditory system is naturally more developed than others, which brings them a lot of convenience at some times, but at other times it bothers them and even collapses. Light sleep is one of them, because the over-developed auditory system makes it easy for them to capture small sounds, and the quality of sleep is greatly reduced.