Many parents think that their babies cry at night because they are hungry. This can be done by trying to give the baby a few more sips of milk or by adding a little cereal to the bottle. If the baby sleeps well by doing this, parents can do so from the next night on. You can also use the option of feeding once in the middle of the night. However, it is often not that simple. Babies may cry at night because of occasional hunger, but they will never develop the habit of night crying because of it. It is possible that your baby is not sleeping at night because he or she is not exercising well during the day. Spend a little more time taking your baby outside to play, and maybe the nighttime crying will get better. Babies who do not play outside for three hours during the day can be considered to be under-exercised. Poorly scheduled naps during the day can also make your baby wake up easily during the night. This type of baby will wake up crying in the night and not wake up in the morning. Sleep until about 10 o’clock, then nap again at 2 to 3 p.m., and take another nap at about 7 to 9 p.m. For such a baby, you can gradually wake him up earlier each morning, adjust his work schedule, and try not to let him sleep again after 6 p.m. Another reason that can cause your baby to cry at night is a lack of micronutrients. 6.7 months old babies are in the semi-weaning period, when the addition of supplementary food is not balanced enough, it will make the baby’s body nutrient deficient. The lack of calcium or zinc will cause increased excitability of the brain and vegetative nerves resulting in the baby’s restless sleep at night. You can buy your baby some red mushroom and fresh vegetables/tuna seaweed/mushroom and salmon mix for your baby to eat in the rice, Taobao is sold. The ingredients are richer and contain a variety of trace elements, which is very good for the baby’s development. When teething, the baby’s sleep will also be affected. At this age, if your baby’s sleep suddenly becomes worse, you need to take into account the teething factor, appropriate supplementation will make the baby’s teething smoother and sleep more peacefully.