How to Fold King Size Fitted Sheets | No More Balled-Up Linen

For the full breakdown, see our best Deep Pocket King Sheets guide.

A king size fitted sheet is the laundry room’s final boss — all that extra fabric and elastic tension turns a simple chore into a wrestling match. The working method below takes about a minute once you’ve done it a few times, and it produces a flat, stackable rectangle instead of the tangled ball that lives at the bottom of your linen closet. With a king’s worth of material to manage, a large flat surface and careful corner alignment matter more than they do with smaller sheets.

The Corner-Tuck Method That Works Every Time

Start on a bed, a large table, or a clean floor — anywhere you can spread the sheet out fully. Hold the sheet by the two corners along one short side, with the elastic edge facing you. Turn that side inside out by bringing the corners together and tucking one corner into the other, so the elastic edges nest together. The sheet should now look like a half-folded pocket.

Reach into the pocket and find the next corner along that same side, then tuck it into the pair you already joined. The elastic edges stay nested the whole time. Do the same on the other side until all four corners are tucked into one another, leaving a rough rectangle with the elastic band hidden inside.

Lay the bundle flat on your surface. Smooth the elastic edges flat against the fabric, straighten the sides, and flatten any bunched or twisted sections before you make a single fold — this is the step most people skip, and it’s why their “folded” sheet still looks like a crumpled parachute.

Fold the rectangle into thirds lengthwise, then fold it in half or into quarters depending on how compact you want the final bundle. Smooth between folds and tuck the loose ends under as you go.

Avoiding the Two Mistakes That Wreck the Fold

The most common failure is letting the elastic edges stay bunched or twisted as you fold. The elastic will fight every fold if you don’t flatten it first, so take the extra ten seconds to smooth the entire edge before you start folding. The second mistake is working on an uneven surface or skipping the flattening step entirely, which lets the sheet shift mid-fold and undoes the corner alignment you just built. Use a bed, table, or other large flat surface and the rectangle will hold its shape.

Why King Size Makes It Harder

The deep pockets designed to grip thick mattresses add even more fabric at the corners, so the corners need to be tucked precisely or the whole fold comes apart. Give yourself working room, and don’t rush the corner alignment — it’s the only step that actually requires care.

If your mattress is deeper than average, a standard king sheet may not stay put no matter how well you fold it.

A Method Worth Borrowing From Martha Stewart

Martha Stewart’s widely circulated method — featured in Real Simple — follows the same core sequence: locate the corners, bring two together, then the other two, shake or smooth the sheet flat, and fold it into a rectangle. The difference is mostly in the details: her version emphasizes shaking the sheet out before you begin to remove wrinkles, and folding in thirds for a uniform bundle. Both approaches converge on the same principle — tuck the corners first, flatten the elastic, and fold in consistent increments.

Whichever variation you use, the payoff is the same: a sheet that stacks neatly, stores flat, and doesn’t explode open when you pull it off the shelf. The first attempt will take longer than you’d like; the tenth takes under a minute.