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How to Stop Bed Sheets Balling Up in the Dryer (and Staying Damp)

Wet sheets twist into a rope and dry from the outside in. Use a smaller load, a mid-cycle shake and bigger dryer balls to open them up.

By Jamilur Rahman Updated November 5, 2026 · 6 min read

Time
10 min setup
Cost
Under $20
Difficulty
Easy
A twisted white bed sheet balled up inside the drum of an open dryer
In this guide
  1. Quick answer
  2. Free vs. permanent fix
  3. What you'll need
  4. Why it happens
  5. Try this first (free)
  6. When free fixes aren't enough
  7. Buy the fix
  8. Bed sheets not fully dry? Finish them without a full re-run
  9. What to skip
  10. FAQ
  11. Related problems

Quick answer

To stop bed sheets from balling up in the dryer, dry one set at a time, shake the wet sheets out before they go in and add something that keeps them apart, such as a dry towel, clean tennis balls or XL wool dryer balls. Sheets ball up because they twist together and trap damp air in the middle. XL wool balls do the separating every load, quietly.

Free fix vs. permanent fix

Free fix · 10 minutes of setup

Smaller loads, a shake and tennis balls

  • Dry one sheet set with a dry towel, not a full load
  • Shake out and untwist the wet sheets before loading
  • Add two or three clean tennis balls
  • Pause halfway, shake and flip the sheets

How long it lasts: Works every load while you keep the load small and shake the sheets out. Tennis balls thump, and some owners dislike the noise.

Most readers choose Permanent fix
XL wool dryer balls (illustration)
Illustration

XL wool dryer balls

Bigger balls keep tumbling between the layers, so hot air reaches the middle of the bundle and the sheets cannot pack into a damp wad. They are quieter than tennis balls, and there is nothing to remember to dig out of a drawer.

How long it lasts: Reusable for many loads, so it becomes part of the routine.

Check price on Amazon

As an Amazon Associate I earn from qualifying purchases.

What you'll need

  • Dry bath towel

    Helps the load tumble and soaks up moisture

    You have it

  • Clean tennis balls

    A free stand-in for dryer balls

    You have it
  • Dryer vent cleaning brush (illustration)
    Illustration

    Dryer vent cleaning brush

    For when sheets take two cycles to dry

    Check price
  • Our pick
    XL wool dryer balls (illustration)
    Illustration

    XL wool dryer balls

    The lasting fix

    Check price

Why it happens

1

An overloaded drum

Sheets need room to open up and tumble. A drum packed with towels and a king sheet set squeezes them into a ball, and the center never meets the hot air.

2

Wet sheets twisted by the spin

The washer spin wraps sheets into a tight rope, and fitted-sheet corners knot themselves. Left that way, they dry from the outside in and stay damp at the core.

3

Heat and sensors that stop too early

High heat dries the outer layer first. A moisture sensor can end the cycle when the edges feel dry, while the center of the ball is still wet.

4

Weak airflow

A full lint screen or a blocked vent slows drying. Even loose sheets come out damp, and the cycle takes twice as long.

Try this first (free)

Do these in order, starting with the simplest.

  1. Dry sheets in a small load

    Tool used: Dry bath towel

    One sheet set plus one or two dry towels fits most dryers. Fill the drum about half full. Sheets should float and tumble, not press against the walls.

  2. Shake the sheets out before they go in

    Lift each piece out of the washer by a corner and shake until it hangs loose. Untie knotted fitted-sheet corners. This takes 30 seconds and prevents most balls.

  3. Add balls to keep layers apart

    Tool used: Clean tennis balls

    Toss in two or three clean tennis balls, or follow the pack for wool balls, usually three to six. They bump the sheets apart as the drum turns.

  4. Use medium heat and stop at about 20 minutes

    Pull the sheets out, shake and flip them, then restart. This one step unwinds most wads. Medium heat dries more evenly than high.

  5. Clean the lint screen and check the vent

    Tool used: Dryer vent cleaning brush

    Empty the screen before every load. If sheets still need two cycles, brush out the vent. A clear vent can cut drying time a lot.

    Dryer vent cleaning brush (illustration)
    Illustration

    Tool for this step

    Dryer vent cleaning brush · For when sheets take two cycles to dry

    Check price on Amazon

  6. Check the hems and corners before folding

    Pinch a hem and a corner. They dry last. If they feel cool or clammy, run 10 more minutes with a dry towel. Never put damp sheets in a closet, since mildew follows.

When free fixes aren't enough

Tennis balls work, but some people find them loud, and they are less effective on a king set. If you wash sheets often for a big household, or the sheets still come out damp in the middle after the steps above, bigger wool balls give more separation. If the sheets need two or three cycles while towels also dry slowly, the vent or the heating element is the problem, not the sheets. If the dryer smells hot or burning, stop and unplug it.

Buy the fix

Still stuck after the free fixes? These are the products we would look at.

Best pick
XL wool dryer balls (illustration)
Illustration

XL wool dryer balls

Fixes: sheets twisting into a damp ball

Look for: 100% wool, tightly felted so they do not shed; Large size, clearly bigger than a tennis ball; A pack of four to six for a king sheet set; Unscented, so no fragrance ends up in your bed.

Who it's for
Anyone who dries sheets every week, or who is tired of tennis balls thumping in the drum.
Honest downside
You have a wool allergy, or your sheets already come out fine with a smaller load.
Check price on Amazon

As an Amazon Associate I earn from qualifying purchases. We don't show prices because they change, so use the button to see today's price.

How we picked: How we picked: this page is based on dryer manuals, laundry-care guides, and the problems and fixes people report in reviews of wool dryer balls. We do not test products by hand.

Bed sheets not fully dry? Finish them without a full re-run

If sheets come out almost dry, do not restart a full cycle. Shake them, add a dry towel and run 10 to 15 minutes on medium heat. Then hang the damp hem over a door or rack for an hour. If they feel clammy even after that, the drum was too full. Next time, split the load.

What to skip

Overstuffing the dryer to save time

Cramming sheets in with a big load of towels is the most common way to get a damp wad. The cycle then takes longer, so you save nothing. Cranking the heat to high has the same problem.

Frequently asked questions

How to stop bed sheets tangling in the dryer?
Dry one set at a time with a dry towel, shake the sheets out as you load them, and add balls. For a big fitted sheet, stop the cycle halfway and shake it loose again.
Why are my bed sheets not drying in the dryer?
The usual reasons are an overfilled drum, a sheet balled into a wad, a full lint screen and a clogged vent. Fix the load first, then clean the screen and check the vent. If towels also dry slowly, call a repair person.
Are tennis balls safe in the dryer?
Many people use clean, new ones without trouble. They can be noisy, and heat can give off a rubber smell. If you notice a smell, switch to wool balls.
How many dryer balls do I need for sheets?
Most packs suggest three to six per load. Use the higher count for a king set, and toss in a dry towel as well.

As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure

XL wool dryer balls (illustration)
Illustration

Our pick: XL wool dryer balls

Check price