What is the difference between 3 in 1 crib and 4 in 1 crib?

A 3-in-1 crib typically functions as a crib, a toddler bed, and a daybed, offering versatility for different stages of a child's growth. In contrast, a 4-in-1 crib adds an additional configuration, often allowing it to convert into a full-size bed, providing longer-term use as the child grows. This extra functionality makes the 4-in-1 crib a more adaptable choice for families looking for longevity in their nursery furniture.