My sister just gave birth to a baby, and the baby has lost a little weight. She was worried that the baby would wake up after sleeping for five hours. She's worried about how I can comfort her.
Babies grow up in sleep. You can consult a gynecologist and the baby's daily care, and then tell your sister, don't worry, the longer the baby sleeps, the fatter the baby will be. Chat with my sister often, understand her thoughts, help her, solve problems, and keep my sister in a good attitude!