Can a Mattress Cover Be Washed? How to Clean It Safely and Effectively

If you’re asking “Can a mattress cover be washed?”, you’re likely trying to keep your bed fresh without damaging anything important. This guide explains which mattress covers can be washed, how to do it correctly, and what to watch out for so your mattress stays protected and comfortable.

What Exactly Is a Mattress Cover?

Before answering “Can a mattress cover be washed?”, it helps to clarify what type of cover you have. People often use different terms for similar products:

  • Mattress cover or encasement – A fabric layer that fully or mostly covers the mattress, sometimes with a zipper.
  • Mattress protector – Usually waterproof or water-resistant; designed to shield the mattress from spills and sweat.
  • Removable mattress cover – Often comes with a foam or hybrid mattress and zips off.

Most of these are designed to be cleaned regularly, but the method depends on the material and construction.

Can a Mattress Cover Be Washed in the Washing Machine?

In many cases, yes – a mattress cover can be washed, but not always in the same way as regular bedding.

What to Check First

Always start by looking at the care label sewn into the cover. It typically tells you:

  • Whether the cover is machine-washable, hand-wash only, or dry clean only
  • Recommended water temperature
  • Whether you can tumble dry or must air dry
  • If bleach, fabric softener, or ironing should be avoided

If there is no label, it’s safest to treat the cover gently: cold water, mild detergent, and low or no heat.

How Should I Wash a Mattress Cover Safely?

General Steps for Washing

For most washable mattress covers:

  1. Remove the cover carefully
    Unzip or remove it without pulling hard on seams or corners.

  2. Pre-treat stains
    Use a mild stain remover on visible spots and let it sit briefly before washing.

  3. Use a gentle cycle
    Select cold or warm water and a mild detergent. Avoid harsh chemicals.

  4. Don’t overload the machine
    Give the cover enough room to move so it cleans evenly and avoids stretching.

  5. Dry according to instructions
    Many covers do best on low heat or air dry. High heat can damage waterproof layers or shrink fabrics.

Are Waterproof Mattress Covers Washable?

Many people specifically wonder: “Can a mattress cover be washed if it’s waterproof?”

In many cases, yes, but waterproof covers often need extra care:

  • Wash on a cool or warm gentle cycle, not hot.
  • Avoid bleach, fabric softener, and high dryer heat, which can break down the waterproof backing.
  • Air drying or using a low-heat tumble setting is usually safer.

Once the waterproof layer is damaged, the cover may no longer protect the mattress from spills as well, so gentle care helps preserve its function.

How Often Should You Wash a Mattress Cover?

Washing frequency depends on how heavily the bed is used and your personal preferences, but many people find this rhythm helpful:

  • Every 1–2 months for regular use
  • More often if there are spills, accidents, or heavy sweating
  • After illness or if the bed has gone unused for a long period and feels dusty

Washing too rarely can lead to buildup of sweat, skin oils, and dust, while washing gently but regularly helps keep the surface of your sleep environment cleaner.

When Should a Mattress Cover Not Be Washed?

There are situations where the answer to “Can a mattress cover be washed?” is no, or not in a machine:

  • The label clearly says “spot clean only” or “dry clean only”
  • The cover has foam padding stitched inside, which can break apart in the wash
  • There is delicate quilting, embroidery, or integrated electronics (such as heating elements)

In these cases, stick to spot cleaning with a damp cloth and mild soap, and let it dry completely before using again.

What If I Can’t Remove the Mattress Cover?

Some mattress covers are non-removable. Trying to force them off can damage the mattress.

For non-removable covers:

  • Vacuum the surface periodically using a clean upholstery attachment.
  • Spot clean stains with a small amount of mild detergent and a damp cloth.
  • Allow the mattress to air dry fully before putting sheets or a protector back on.

Many people use a separate, washable protector over a non-removable cover to make cleaning easier.

✅ Quick Mattress Takeaways

Key points consumers should understand about “Can a Mattress Cover Be Washed”

  • Most removable mattress covers can be washed, but always follow the care label.
  • Waterproof covers are often machine-washable, but usually need gentle cycles and low or no heat.
  • Check for “spot clean only” or “dry clean only” warnings before washing.
  • Wash every 1–2 months in normal conditions, or more often after spills or heavy use.
  • Avoid high heat, bleach, and harsh chemicals, which can damage fabrics or waterproof layers.
  • If the cover is non-removable, rely on vacuuming and spot cleaning, and consider adding a washable protector on top.

Keeping a mattress cover clean does not have to be complicated. By checking the care label, using gentle washing methods, and drying it carefully, you can help your cover last longer and keep your mattress better protected over time.