Causes the baby sleep at night full head of sweat, mainly due to the following situations.1, due to the night wear clothes or cover too much caused by parents afraid of the child sleep at night wind cold, so will give the child covered with a lot of quilt or cotton clothes, the child’s body heat increases, there will be a full head of sweat. In this case, parents only need to timely reduce the amount of clothing or quilt can be. 2, due to vitamin D deficiency rickets, if the child sleeps at night sweat, and accompanied by occipital baldness, chicken chest, rib beads and other symptoms, the child often also appear at night obvious crying symptoms, parents need to give the child a timely test of vitamin D or blood calcium levels. If there is a drop, parents should promptly supplement vitamin D and calcium gluconate oral solution accordingly.