Folding laundry, you may end up with two very different kinds of pillow covers: soft rectangular pillowcases with an opening at one end, and boxy, square shams with a hidden back opening and a crisp, finished border. The sham vs. pillowcase question comes down to job descriptions: one is made for sleeping, the other for styling. Both earn a place on a well-dressed bed.
A pillowcase is the simple cover you sleep on every night. A sham is a decorative cover, usually with a flat, stitched border called a flange around its front edge. Its opening runs along the back and is tucked closed with an overlapping “envelope” closure, buttons, or ties. Once you know that, choosing between them gets much easier.
Main differences at a glance
| Aspect | Pillowcase | Sham |
|---|---|---|
| Shape and size | Rectangular; standard is about 20 by 26 inches, queen 20 by 30, and king 20 by 36. | Often square, especially Euro shams at 26 by 26 inches. The decorative flange adds a few inches on every side. |
| Opening | One open end; the pillow slides fully inside. No closure needed. | Opening is on the back, hidden by an overlapping flap, buttons, or ties. |
| Best use | Sleeping, every night. It protects the pillow from sweat, skin oils, and daily wear. | Styling the bed, propping against the headboard, or adding a layered look. Remove it before actually sleeping. |
| Typical fabrics | Soft and breathable, usually cotton percale or sateen; good for direct skin contact. | Cotton, linen, or velvet, sometimes with trims or embroidery. Beautiful, but not always comfortable to sleep on. |
| Care | Machine-wash weekly in warm or hot water; tumble dry low. | Check the label. Many can be machine-washed gently and line-dried; embellished or dry-clean-only styles need more care. |
| Durability | Undergoes nightly friction and frequent washing; expect to replace after a few years. | Less wear and contact with body oils, so it can stay crisp much longer. |
| Cost | A good cotton pair runs about $15 to $45. | Shams are usually sold individually and cost $25 to $80 or more. |
Which should you choose?
Start with your sleep: every pillow your head touches at night deserves a clean, breathable pillowcase. If you’re setting up a new bed, buy a solid set of cases first. Then add shams as the styling layer on top. A simple formula is two pillowcases for the pillows you use and two shams to dress the head of the bed.
If your pillowcases are already comfortable and you want that polished, pulled-together look, shams are the piece that finishes it. They also make comfortable backrests for reading in bed when you put them over soft square pillow inserts. Just take them off or unbutton them at night before you settle in.
🛏️ Note: Measure your pillow inserts before buying shams. A true Euro sham calls for a square 26-by-26-inch insert; a standard 20-by-26-inch pillow will sag inside it and leave the flange looking wrinkled.
Once you separate the jobs—sleeping and styling—the decision becomes simple. Keep your pillowcases clean, keep a couple of shams for beauty, and you’ll have a bed that looks as good as it feels.
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