How To Clean a Mattress Cover: Simple Steps for a Fresher Bed

If you’re searching for how to clean a mattress cover, you probably want clear, safe steps that won’t damage the fabric or your mattress. This guide walks through exactly how to wash, spot clean, and care for different types of mattress covers so they stay fresh and last longer.

What Is a Mattress Cover, and Why Does Cleaning It Matter?

A mattress cover (often called a mattress protector or encasement) is a removable layer that sits on top of your mattress. Some are waterproof, some are quilted for comfort, and others are zippered covers that fully encase the mattress.

Keeping it clean matters because:

  • It helps protect your mattress from sweat, spills, and dust.
  • A clean cover can reduce odors and keep your bed feeling fresher.
  • Regular care helps the cover maintain its protective features (like waterproof backing).

How To Clean a Mattress Cover: Step-by-Step

1. Check the Care Label First

Before doing anything, always read the care tag sewn into your mattress cover. It usually tells you:

  • Whether it’s machine-washable or hand-wash only
  • Recommended water temperature
  • Whether tumble drying is allowed
  • If bleach, fabric softener, or ironing should be avoided

Following these instructions is the safest way to avoid shrinking, warping, or damaging waterproof layers.

2. How to Machine-Wash a Mattress Cover

If the label says machine-washable, this is a common method for cleaning a mattress cover:

  1. Remove the cover from the mattress carefully, especially if it has a zipper.
  2. Close all zippers before washing to prevent snags.
  3. Wash on a gentle cycle with a mild liquid detergent.
  4. Use cool or warm water unless the label allows hot.
  5. Avoid bleach and fabric softeners unless specifically permitted, as they can break down fibers or coatings.

💡 Tip: Washing the cover on its own or with similar lightweight items helps it clean evenly and prevents strain on seams.

3. How to Dry a Mattress Cover Safely

Drying is just as important as washing:

  • If tumble drying is allowed:
    Use a low heat or air-dry setting. High heat can cause shrinkage or damage waterproof backings.
  • If air-drying is recommended:
    Lay the cover flat or hang it to dry fully before putting it back on the mattress.

Make sure the cover is completely dry to avoid trapped moisture.

How To Clean a Mattress Cover With Stains or Spills

What if There’s a Fresh Spill?

For fresh spills (like drinks):

  1. Blot, don’t rub. Use a clean, dry cloth or paper towel to soak up as much liquid as possible.
  2. Lightly dab with a cloth dipped in cool water and mild detergent.
  3. Rinse by blotting with a clean, damp cloth.
  4. Let it air-dry before making the bed again.

How To Spot Clean a Mattress Cover

If you don’t want to wash the entire cover:

  1. Mix a small amount of mild detergent with cool water.
  2. Dip a clean cloth into the solution and gently dab the stained area.
  3. Blot with a clean, damp cloth to remove soap residue.
  4. Allow the area to air-dry completely.

Avoid soaking the cover, especially if it has a waterproof or padded layer.

Can Every Mattress Cover Go in the Washing Machine?

Not always. Some covers—especially those with thick padding, foam layers, or specialty fabrics—may need hand washing or spot cleaning only.

For non-machine-washable covers:

  • Use a slightly damp cloth with mild detergent to wipe the surface.
  • Avoid harsh scrubbing or soaking.
  • Let it air-dry thoroughly before use.

If you’re unsure, it’s safer to stick to gentle spot cleaning than risk damaging the cover.

How Often Should You Clean a Mattress Cover?

How often you clean a mattress cover depends on use and personal preference, but many people find this schedule helpful:

  • Light use: Every 2–3 months
  • Regular use: About once a month
  • After spills or accidents:Immediately

Using a bedsheet over your cover and washing your sheets regularly can help keep the cover cleaner between washes.

Common Mistakes to Avoid When Cleaning a Mattress Cover

Here are a few things that often cause problems:

  • Using hot water when the label recommends cool or warm
  • High heat drying, which can shrink fabric and damage coatings
  • Bleach or harsh chemicals, which can weaken fibers
  • Putting the cover back on damp, which can trap moisture

Following the care instructions and using gentle methods goes a long way toward keeping your cover in good condition.

✅ Quick Mattress Takeaways

Key points consumers should understand about How To Clean a Mattress Cover

  • Always read the care label first before cleaning a mattress cover.
  • Most washable covers do well with a gentle cycle, mild detergent, and cool or warm water.
  • Low heat or air-drying helps prevent shrinkage and protects waterproof layers.
  • For spills, blot immediately and use mild detergent and cool water for spot cleaning.
  • Not every cover is machine-washable; some require hand washing or light surface cleaning.
  • Make sure the cover is completely dry before putting it back on your mattress.
  • Regular cleaning helps your cover stay fresh and continue protecting your mattress.

Knowing how to clean a mattress cover properly helps you care for both the cover and the mattress underneath. With gentle washing, careful drying, and quick attention to spills, you can maintain a clean, comfortable sleep surface for the long term.