You may dress your toddler before sleep as you do at home. Use cotton or fleece onesies or pajamas. If it’s cold, add an inner layer of clothing, such as a vest, to help them keep warm. This will also be useful if your child needs to go to the toilet (as onesies need to be removed entirely, exposing toddlers to cold). If your child needs diapers, pant-style diapers are more convenient for camping.