Bamboo vs Cotton: Which Little Sleepies Pajamas to Buy

What makes bamboo the signature fabric

Bamboo viscose is the material Little Sleepies is known for, and the appeal is easy to feel. It’s exceptionally soft, has a natural stretch that moves with a squirming baby, and breathes well, which helps regulate temperature on warm nights. For parents of sensitive-skinned newborns, that gentle, smooth hand-feel is often the deciding factor. The two-way zippies in bamboo are the standout: the double zipper means you can change a diaper from the bottom without unwrapping a sleeping baby, which at 2am is worth more than any discount.

Where cotton still earns its place

Cotton, where it’s offered, leans classic. It has a slightly crisper hand than bamboo and tends to suit cooler bedrooms and shoppers who simply prefer the familiar feel of a traditional pajama. It can also be reassuring for anyone who wants a fabric they already know how to launder without a second thought. If your nursery runs cold or you’re buying for an older child who kicks off anything too warm, cotton is a sensible pick.

Breathability and temperature

This is the clearest split. Bamboo’s breathability makes it the better default for warm rooms, summer months and babies who sleep hot. Cotton holds a touch more warmth, which is an advantage in a chilly room and a drawback in a stuffy one. If you only remember one thing, match the fabric to the temperature your child actually sleeps in rather than the season on the calendar.

Stretch, fit and sizing

Bamboo’s stretch gives it a forgiving fit, which buys you a little extra wear as a baby grows. Cotton has less give, so it can feel more fitted and may be outgrown a touch sooner. Whichever you choose, the same sizing caution applies: babies grow in leaps, so if you’re between sizes, sizing up usually gets you more nights of wear. A free first return within the return window takes the risk out of guessing.

Care and longevity

Both fabrics reward gentle laundering. Bamboo in particular keeps its softness longest when washed cool and dried low, and avoiding high heat protects the stretch that makes it special. Cotton is a little more forgiving of rougher handling. Neither is difficult; both simply last longer with a light touch.

So which should you buy?

For a shower gift, bamboo is the safer crowd-pleaser — it photographs beautifully, feels luxurious, and suits the widest range of nurseries. For your own drawer, let your room decide: bamboo for warm or average rooms and hot sleepers, cotton for cool rooms and classic tastes. Once you’ve settled on fabric, the money question is simple — check the homepage for the best current code, and remember that a clearance print in the fabric you want often beats a full-price piece plus a percentage code.