Can You Wash Mattress Cover? How to Clean It Safely and Properly

If you’re wondering “Can you wash mattress cover?”, you’re not alone. Many people aren’t sure whether their mattress cover can go in the washing machine, how often to wash it, or how to keep it in good shape without damaging the mattress.

This FAQ-style guide walks through what you can (and can’t) do, and how to tell the right cleaning method for your specific cover.

What Exactly Is a Mattress Cover?

A mattress cover is a removable layer that goes over your mattress. It may be:

  • A simple fabric cover that zips around the whole mattress
  • A waterproof protector that guards against spills
  • A padded topper-style cover for extra cushioning

Most modern mattresses have some kind of removable cover, while others have non-removable upholstery that should not be taken off.

Can You Wash Mattress Cover in the Washing Machine?

In many cases, yes—but it depends on the care label.

Most fabric mattress covers and protectors are designed to be machine washable, especially if they zip off easily. However, some covers contain:

  • Special foams or padding attached inside
  • Waterproof membranes that can be heat-sensitive
  • Delicate stitching or quilting

Because of this, the first step is always to check the care tag sewn into the cover. This label tells you if it is machine washable, the recommended water temperature, and whether tumble drying is allowed.

If there is no tag or the instructions say “do not remove” or “spot clean only”, treat the cover as non-washable and clean it on the surface instead.

How Should You Wash a Removable Mattress Cover?

If the care label confirms you can wash the mattress cover, follow these general steps:

  1. Remove the cover carefully
    Unzip it slowly and avoid pulling or stretching corners.

  2. Pre-treat stains
    Gently dab stained areas with a mild detergent and cool water. Avoid scrubbing hard, which may damage fibers.

  3. Use a gentle cycle
    Wash on cold or warm water, unless the label clearly allows hot. A mild detergent is usually enough.

  4. Avoid harsh products
    Bleach, fabric softeners, and strong chemicals can weaken fabric or damage waterproof layers.

  5. Dry with care
    Many covers do best on low heat or air dry. High heat may cause shrinkage or damage waterproof backing or elastic.

What If the Label Says “Spot Clean Only”?

If your mattress cover is labeled “spot clean only” or cannot be removed:

  • Use a small amount of mild detergent mixed with water.
  • Lightly blot the area with a clean cloth; avoid soaking the fabric.
  • Follow with a clean damp cloth to remove residue.
  • Allow to air dry completely before putting sheets back on.

In this case, the answer to “Can you wash mattress cover?” is no in the machine, but you can carefully clean the surface.

How Often Should You Wash a Mattress Cover?

How often you wash it depends on how it’s used:

  • For everyday use under sheets: every 1–3 months is common.
  • After spills, accidents, or illness: wash as soon as possible.
  • If you have allergies or pets on the bed: you may choose to wash more frequently.

Washing too rarely can lead to buildup of sweat, dust, and odors, while very frequent high-heat washing may wear out the fabric faster. Moderate, regular cleaning tends to work well for most sleepers.

Can Drying Damage a Mattress Cover?

Yes, it can—if done incorrectly. Heat is one of the main risks.

  • High heat may cause shrinkage, warping, or peeling of waterproof layers.
  • Low heat or air-drying is often safer and more in line with care instructions.
  • If the label allows tumble drying, stick to the recommended setting and remove the cover promptly to prevent wrinkling or strain on the fabric.

When in doubt, air dry flat or over a drying rack to avoid stretching.

What About Waterproof Mattress Covers or Protectors?

Waterproof covers often use a thin protective layer on the underside. When asking “Can you wash mattress cover?” in this case, the answer is usually yes—but with extra care:

  • Use cool or warm water, not hot, to help preserve the waterproof backing.
  • Avoid bleach and fabric softeners, which can break down the membrane.
  • Dry on low heat or air only, as high heat can cause cracking or peeling over time.

Keeping these steps in mind helps the cover maintain its protective properties for longer.

What If You’re Not Sure Whether You Can Wash It?

If the cover is attached tightly, has no visible zipper, or warns against removal, it may be part of the mattress construction rather than a separate washable layer.

In that situation, treat it like upholstery:

  • Vacuum the surface gently
  • Spot clean with care
  • Use a removable, washable protector on top for easier maintenance going forward

This protects the mattress while keeping cleaning simple.

✔️ Quick Mattress Takeaways

Key points consumers should understand about “Can You Wash Mattress Cover”

  • Always check the care label first; it determines whether the mattress cover is machine washable or spot-clean only.
  • Many removable covers can be washed, but usually on a gentle cycle with mild detergent and cool or warm water.
  • Hot water and high heat drying can shrink fabrics or damage waterproof layers, so low-heat or air drying is often safer.
  • Non-removable or “spot clean only” covers should not go in the washer; gently clean the surface instead.
  • Regular but not excessive washing (every 1–3 months for most people) helps keep the bed fresh without wearing out the fabric.
  • When in doubt, treat the cover gently and add a separate, clearly washable protector on top for easier care.

With these guidelines, you can confidently decide when and how you can wash a mattress cover while keeping both the cover and mattress in good condition.