Sweating is a normal physiological phenomenon of our body. Because of the baby’s rapid growth and development, high metabolism, high activity during the day, more heat production, the body is too late to dissipate the heat, into sleep, can only gradually transition from high metabolism to basal metabolism, in addition, the baby’s plant nervous regulation function is not perfect, the early sleep, the sympathetic nerve dominates the sweat glands, the body will still release a large amount of heat in the form of sweating. Therefore, baby is prone to sweating for a period of time after falling asleep. In addition, eating before bedtime can increase gastrointestinal motility, gastric juice secretion, and sweat gland secretion. These conditions can cause baby to sweat more after sleeping, the lighter the head is just wet, the heavier the sweat on the pillow soaked in a large area when sleeping. This situation usually occurs shortly after going to sleep, and most of them last for 2-3 hours and then gradually decrease or disappear. If the baby has normal growth and development, is full of energy during the day, active and normal appetite, most of this phenomenon is a normal physiological phenomenon that will gradually disappear with the increase of age. If a baby younger than 3 years old is weak and sweats profusely at night, or even sweats all night long, and has symptoms such as irritability, crying, sleep disturbance, easy to be frightened, and weight loss, this is not a normal phenomenon. The most common causes are vitamin D deficiency rickets. In addition to the above symptoms, there will also be square cranium, zealous baldness, chicken chest and other manifestations. If the baby is just sweating a lot, not accompanied by irritability, crying, sleep disturbance, easy to be frightened, wasting and other symptoms, mommy pay attention to strengthen care can be. For example, the room temperature should not be too high in the first half of the night, dry the baby’s sweat in the second half of the night, change a dry pillow when the pillow is wet, cover the quilt well, etc. Mothers should also pay special attention to keep their babies as quiet as possible for a while before going to bed, don’t play too excitedly, don’t eat too much, and also pay attention to give them more vegetables and fruits during the day to replenish the vitamins and minerals lost in the sweat. If baby has symptoms such as irritability, crying, restless sleep, easy to be frightened, thinning, or has square cranium, occipital baldness, chicken chest, etc., you can take vitamin D and calcium supplements in appropriate amounts under the guidance of your doctor, and you should also pay attention to eating more calcium-rich foods, such as dairy products, fish and shrimp skin in your diet. Through active treatment, the baby’s excessive sweating symptoms will soon be reduced or even disappear. For excessive night sweats in older children, attention should also be paid to the possibility of diseases such as anemia, tuberculosis, rheumatism and rheumatoid diseases. Of course, if it is a disease, in addition to excessive night sweats, it will be accompanied by low fever, fatigue, joint pain and other manifestations. Therefore, if you find that your baby is sweating a lot during sleep, you should go to the hospital in time to rule out excessive sweating caused by certain diseases. Make your baby feel safe. Frequent rolling over and crying are not always caused by disease, but sometimes by a lack of psychological security. With a little patting or snuggling, your baby will fall asleep quickly. If your baby wakes up during the night, don’t talk much to your baby to avoid getting excited and interfering with falling asleep as soon as possible. Avoid making your baby feel irritable at bedtime. If you dress or cover your baby too much, you will make your baby uncomfortable and restless during sleep, making it difficult to sleep soundly. It is not necessary for the sleep environment to be absolutely quiet. If you are used to sleeping in an excessively quiet environment from a young age, you may wake them up later with a little noise. It’s best to play soft, beautiful music at low volume while your baby sleeps, both to encourage your baby to sleep peacefully and to exercise their ability to sleep peacefully when there is a slight sound around them. Loosen your baby’s limbs to sleep. In order to keep baby warm, some moms like to wrap baby up to sleep. The body is not relaxed and will make the baby sleep uncomfortably.