How long does a one-month old baby sleep

Infants who are more than one month old usually sleep for 16 to 18 hours. If the infant is in good spirits, even a slightly longer or shorter sleep time is normal.
Children at different stages of development need different amounts of sleep every day. Usually, infants around one month old sleep 16 to 18 hours a day.
If the infant sleeps a little longer or shorter, but wakes up in good spirits, with satisfactory weight gain and good appetite, parents need not worry too much.
If the infant wakes up easily during sleep, or sweats a lot during sleep, and cries a lot after waking up, parents need to be alert to whether it is due to calcium deficiency or other diseases, etc., and can actively go to the hospital for examination to identify the causes and then carry out targeted treatment.