Baby Pajama Sizes: How to Pick the Right One
Baby sizes are labelled by age, but the age is only a rough guide. Brands size by height and weight, and those charts differ from one label to the next.
How the labels work
- Newborn, 0-3M, 3-6M, 6-9M, 12M, 18M, 24M are baby sizes, usually for one-piece sleepers.
- 2T to 5T are toddler sizes, cut for kids who walk, with more room in the seat and less in the body.
- 18M and 2T are close in length but cut differently: 2T assumes no bulky diaper and a slimmer build.
Picking the size
- Weigh and measure your child. Height matters most for footed sleepers, because the feet stop them from stretching.
- Check the brand's own chart. Every listing has one. Use it rather than the age on the label.
- Between sizes? Go up one. Except on snug-fit sets, where the close fit is part of the safety design.
- Think about the season. Buy the next size for winter pajamas if your child will grow into it by the cold months.
Picks to look at
Koala print cotton bodysuits, 5-packFive short-sleeve cotton bodysuits in soft greys and greens, with koala prints and slogans.
Check price on Amazon
Plush koala hooded bathrobeA soft grey plush bathrobe with a koala-face hood, ears and a tie belt for after bath time.
Check price on Amazon
Hooded puffer snowsuit with bear earsA black quilted one-piece snowsuit with a fleece-lined hood, bear ears and a full zip.
Check price on Amazon
Striped zip sleeper with fox patchA teal striped cotton sleeper with a zip front, ribbed cuffs and a fox applique.
Check price on AmazonPicks to look at
Zip-front footies with jungle animals, 4-packFour cotton footed sleepers with stripes, elephants and giraffes, and a zip front for quick night changes.
Check price on Amazon
Pink and grey footies, 4-packFour footed sleepers with rainbows, dots, flowers and a bear face with soft ears, all with zip fronts.
Check price on Amazon
Fleece footed pajamas, 3-packWarm, flame-resistant fleece one-pieces with forest animals, a moose patch and a red buffalo check.
Check price on Amazon
Cotton star-print sleepers, 3-packSoft cotton footed sleepers with stars and planets and a zip that runs down the side of the leg.
Check price on Amazon
