When should I switch to SleepSack Toddler?

It all depends on your baby's size and level of comfort! Sleep sacks for older babies can fit babies weighing up to 36 pounds and measuring up to 45 inches long. Some babies may reach this limit as early as 18 months, while others may not reach it until they are two years old. Your baby's level of comfort with the sleep sack will also influence how long they wear it. Once your baby feels uncomfortable in their sleep sack, it might be time to switch to a toddler sleep sack with legs or a blanket.