What Fabric for Pajamas?
Pajama fabric is a comfort decision with one technical question inside it: how do you sleep? Hot sleepers need fibers that move moisture; cold sleepers need loft; everyone needs softness that survives constant washing.
By sleeper type
- Runs hot: modal or Tencel jersey, bamboo viscose — regenerated fibers absorb and release moisture better than cotton and feel cool to the touch. Linen for the hottest nights.
- Runs cold: cotton flannel (brushed both sides), waffle knit thermals, fleece for robes.
- Classic: cotton poplin for crisp button-up sets; cotton jersey for tee-and-shorts softness.
- Glamour: satin — polyester satin washes easily, silk satin is the luxury; both are kind to hair and skin.
What weight to choose
Summer sleepwear lives under 150 gsm; year-round jersey sets around 150–200; flannel and thermals 170–300. Lighter than daywear across the board — bedding traps warmth a jacket never has to account for.
The children's sleepwear rule (US)
Worth knowing before sewing for kids: US safety rules require children's sleepwear to be either flame-resistant or snug-fitting — the snug-fit exemption is why store-bought kids' pajamas in plain cotton fit close. For home sewing, the practical translation: cotton and cotton-spandex knits in fitted styles.
Sewing sleepwear
The friendliest projects in dressmaking: elastic waists, no fitting pressure, forgiving fabrics. French-seam poplin sets for durability through endless washing; use a stretch stitch on knits; pre-wash everything hot — sleepwear meets the laundry more than any other garment you will sew.
Pajama fabric, measured
Fibers in our pajama fabric
- Polyester89%
- Cotton44%
- Spandex39%
- Viscose30%
Share of listings containing each fiber — most cloths blend two or more.
Live from 3,968 measured listings on our shelf. How we measure →
Common questions
What is the coolest fabric to sleep in?
Linen and Tencel lead; bamboo viscose and modal just behind. All beat cotton at moving moisture, which is what cool sleeping actually is. Polyester satin looks cool but sleeps warm.
Is bamboo really better for night sweats?
Bamboo viscose does absorb and release moisture faster than cotton, so damp-night comfort is real. The bamboo part is marketing; the viscose part is the mechanism.
What fabric for kids' pajamas?
Snug-fitting cotton or cotton-spandex knits — soft, breathable and aligned with how the US sleepwear safety rule works. Interlock is the classic choice.
