Woman in pink Nashville Toile pajamas reading on the floor by the bed

Cotton vs Modal vs Silk Pajamas: How to Choose the Right Fabric

Katie Kime

Cotton, modal and silk pajamas compared: how each feels, washes and wears, and why most of our sets are a 50/50 blend of modal and cotton.

It is ten o'clock, the book is open, and the only thing on your mind should be the next chapter. Not the waistband. Not the seam at the collar. Not the fact that you are too warm, again.

Fabric decides most of that. Cotton, modal and silk each feel different against the skin, wash differently and age differently. Here is how they compare, and what we chose for our own pajamas.

Cotton

Cotton is the fabric most of us grew up sleeping in. It breathes, it takes a hot wash without complaint, and it has a crisp, matte feel, especially woven as a poplin. The trade-off is that it can come out of the dryer stiff and wrinkled, and a plain weave can pill where arms and legs rub. If you run warm and like a pajama that feels pressed rather than draped, cotton is a good place to start.

Modal

Modal is spun from beech wood pulp into a fiber that is smooth, cool to the touch and drapes rather than holds a shape. It feels softer than cotton, resists shrinking and takes dye well, which matters when the print is the point. On its own it can cling and stretch. Blended with cotton, it keeps the softness and gains some structure.

Woman in Nashville Toile pajama shorts on a yellow velvet chair

Silk

Silk is the indulgence. It is light and smooth with a sheen that cotton and modal do not have, and it feels cool on a warm night. It also asks a lot. Most silk pajamas are hand wash or dry clean only, they show water spots, and they cost far more than cotton or modal. We think of silk as the special occasion set, not the pair you reach for every night, and we do not sell silk pajamas.

Which One Is Right for You

If you sleep hot and like a crisp feel, look for cotton, or a blend with plenty of cotton in it. Choose modal, or a modal and cotton blend, if softness comes first and you want a set that wears in rather than out. Choose silk for a once-in-a-while luxury you are happy to hand wash.

What We Chose

Most of our pajama sets, including the Nashville Toile in these photos, are a 50/50 blend of modal and cotton. Cotton for breathability and a little structure, modal for softness and drape, and together they carry a hand-illustrated print wash after wash. Every set has piping at the collar and cuffs, a chest pocket and an elastic waist with a ribbon tie, and most prints run XXS to 3XL. A few prints use a rayon and Tencel blend instead, so check the fabric line on the product page.

Care is simple: machine wash cold, tumble dry low. The blend gets softer with every wash.

Add a monogram to the front left chest pocket and a set becomes a gift. Start with our Modal and Cotton Pajama Sets.

Two women in matching Nashville Toile pajamas at a breakfast table

Frequently Asked Questions

What is the softest fabric for pajamas?
Of cotton, modal and silk, modal feels softest. A modal and cotton blend keeps most of that softness and adds the breathability and structure of cotton, which is why most of our sets are 50/50.
Do modal pajamas shrink?
Modal resists shrinking better than cotton. For our modal and cotton sets, machine wash cold and tumble dry low.
Are silk pajamas worth it?
For a special occasion or a gift, they can be. For everyday wear, cotton or a modal and cotton blend is easier to live with, since most silk is hand wash or dry clean only. We do not sell silk pajamas.
What are Katie Kime pajamas made of?
Most of our pajama sets are 50% modal and 50% cotton. A few prints use 75% rayon and 25% Tencel, and the fabric is listed on every product page.