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

If you’re searching for “How To Wash Mattress Cover,” you’re likely wondering whether it can go in the washer, what settings to use, and how to avoid shrinking or damaging it. This guide walks through the process step-by-step so you can clean your mattress cover safely and keep it in good shape.

What Is a Mattress Cover and Why Does Washing Matter?

A mattress cover (sometimes called a protector or encasement) is a removable layer that fits over your mattress to help shield it from sweat, spills, dust, and everyday wear.

Keeping it clean matters because:

  • It helps maintain a fresher sleeping surface
  • It can reduce odors and buildup from sweat and body oils
  • It protects the mattress itself, which is usually not washable

Learning how to wash mattress cover correctly helps you avoid shrinkage, damage to waterproof layers, or loss of shape.

Can You Wash a Mattress Cover in the Washing Machine?

In many cases, yes, but not always.

How to check if your cover is machine washable

  1. Read the care label
    Look for symbols or text such as:

    • “Machine wash cold/warm”
    • “Delicate cycle only”
    • “Do not tumble dry”
      If the label is missing, use the most gentle, low-heat settings as a precaution.

  2. Identify the material
    Common fabrics include cotton, polyester, bamboo blends, and waterproof laminates.

    • Plain fabric covers are usually easier to wash.
    • Waterproof or padded covers often need cooler water and gentle cycles to protect the backing.

  3. Check for special features
    Zippers, waterproof membranes, and quilting can all affect how you wash and dry the cover.

Step-by-Step: How To Wash Mattress Cover Safely

1. Remove and pre-treat stains

  • Strip the cover from the mattress.
  • For visible spots (like sweat marks or light spills), gently blot with a mild detergent and cool water.
  • Avoid harsh scrubbing, which can wear down fibers or waterproof layers.

2. Choose the right wash cycle

Most mattress covers do best with:

  • Water temperature: Cold or warm (not hot)
  • Cycle: Gentle or delicate
  • Detergent: Mild, liquid detergent, using a normal amount

Avoid:

  • Bleach, unless the care label explicitly allows it
  • Fabric softener if the cover is waterproof, as it may affect the protective layer

3. Load the washer correctly

  • Wash the mattress cover on its own or with similarly lightweight bedding.
  • Do not overload the machine; this helps prevent tearing or stretching.

How Should You Dry a Mattress Cover?

Drying is where many covers get damaged, so proceed carefully.

Common drying recommendations

  • Air dry when possible: Hang over a clothesline, drying rack, or banister.
  • If using a dryer:
    • Choose low heat or air-only.
    • Remove while slightly damp to avoid overheating.
    • Lay flat or hang to finish air drying.

High heat can:

  • Shrink the fabric
  • Crack or peel waterproof membranes
  • Distort elastic edges

How Often Should You Wash a Mattress Cover?

There’s no single rule, but a general guideline is:

  • Every 1–2 months for regular use
  • More often if:
    • You sweat heavily
    • You eat or drink in bed
    • There are spills or accidents
    • You share the bed with children or pets

Washing more frequently may be helpful, but always follow the care instructions to avoid wearing it out early.

Special Situations: Spills, Accidents, and Waterproof Covers

What if there’s a major spill or accident?

  • Remove the cover as soon as possible.
  • Blot any excess liquid with a clean towel.
  • Rinse the affected area under cool running water if the care label allows.
  • Wash the entire cover following the gentle steps above.

Are waterproof mattress covers washed differently?

Many waterproof covers are washed like regular ones, but they are more sensitive to heat:

  • Use cold or warm water, never hot.
  • Stick to low-heat or air-dry settings.
  • Avoid ironing and high-heat drying, as it can damage the waterproof backing.

Common Mistakes to Avoid When Washing a Mattress Cover

  • Ignoring the label: The fastest way to shrink or damage a cover.
  • Using hot water: Can weaken elastic, warp fabrics, or damage laminates.
  • Over-drying on high heat: A common cause of peeling waterproof layers.
  • Overloading the machine: Increases stress on seams and zippers.

✅ Quick Mattress Takeaways

Key points consumers should understand about How To Wash Mattress Cover

  • Always check the care label first before deciding how to wash mattress cover.
  • Use gentle settings: cold or warm water, mild detergent, and a delicate cycle.
  • Avoid high heat in the washer and dryer, especially for waterproof covers.
  • Air drying is safest to prevent shrinking and damage to protective layers.
  • Wash regularly but not excessively—about every 1–2 months for most households.
  • Treat spills promptly and wash soon after accidents to prevent staining and odors.

Knowing how to wash mattress cover properly helps you keep your sleeping surface clean, comfortable, and better protected over time. With gentle cycles, mild detergent, and careful drying, most covers are easy to maintain and can continue to do their job effectively.