Drinking a lot of water before going to bed may lead to edema, so it is recommended not to drink too much water 1-2 hours before going to bed at night. Because there is a certain amount of water required by the body’s daily metabolism, drinking more water or drinking less water is not good. When resting at night, the organs in the body will also slow down and enter a state of rest, properly reducing the rate of metabolism, so the demand for water will also decline. If you drink too much water, it will increase the burden on your heart and kidneys. If you drink too much water before going to bed and exceed your body’s metabolic capacity, the excess water will seep into the tissue spaces, thus causing edema. If you feel particularly thirsty before going to bed, you can sip a little, but it is not recommended to drink too much water.