Listings use standard toddler sizing including 2T. Some product descriptions show size ranges like 12M–4T or wider ranges that extend from toddler sizes (e.g., 2T) up through larger boys' sizes.
Common formats include 2-piece sets (top and bottom), 3-piece sets that add socks, and 4-piece sets with extra tops or bottoms for mix-and-match. Multi-piece sleep sets are frequently offered.
Listings that call pajamas snug-fit or tight-fit often use stretchier fabrics such as snuggle jersey or other stretch jersey blends. By contrast, some cotton or microfiber sets are labeled regular fit.
Long-sleeve toddler pajamas generally feature full-length sleeves with ribbed or cuffed wrists; pant legs often have matching ribbed or cuffed ankles to keep garments in place.
Many sleepwear options feature character or show-themed prints, including superhero motifs, vehicle- or robot-inspired logos, and preschool-show character prints.