Is it harmful to give a child a bottle or sippy cup to take to bed with them?
Taking a drink to bed can cause cavities. If a child has a drink during the night or wants one to help them fall asleep, bacteria will have not defenses against them and they will start to produce tooth decay. When you sleep, your salivary production is decreased. Saliva is what rinses your teeth and coats them to protect them. In addition, a child having a drink without brushing their teeth also can help to promote tooth decay.