How To Wash Mattress Cover In Washing Machine: Step‑By‑Step FAQ Guide

If you’re searching for “How To Wash Mattress Cover In Washing Machine”, you’re likely wondering whether it’s safe, what settings to use, and how to avoid shrinking or damaging the cover. This guide walks through the process in clear steps and answers the most common questions about machine‑washing mattress covers.

Can I wash my mattress cover in the washing machine?

In many cases, yes, you can wash a mattress cover in a washing machine, but it depends on the care label and the type of cover you have.

Most mattress covers fall into three broad categories:

  • Removable fabric covers (zip-off covers on many mattresses)
  • Mattress protectors (thin, often waterproof layers that go over your mattress)
  • Non-removable or spot-clean-only covers (stitched directly to the mattress core)

Always check the label first. If it says “machine wash,” you can follow the steps below. If it says “spot clean only,” “do not machine wash,” or has no instructions, it’s safest to avoid the washing machine and clean only the surface.

How To Wash Mattress Cover In Washing Machine: Basic Steps

1. Read the care label

The label usually tells you:

  • Water temperature (cold, warm, or hot)
  • Cycle type (delicate, gentle, normal)
  • Drying method (tumble dry low, line dry, no heat)

If the instructions conflict with anything you’ve heard elsewhere, follow the label. It’s designed for that specific fabric and construction.

2. Pre-treat stains

If you see visible stains:

  • Gently blot (don’t scrub) with a mild detergent and cool water.
  • Use a small soft brush or cloth to work the detergent into the stain.
  • Let it sit for a few minutes before washing.

Avoid harsh chemicals or bleaching agents unless the label clearly states they’re safe.

3. Choose the right cycle and settings

For most washable mattress covers and protectors, a gentle or delicate cycle is recommended. When deciding how to wash mattress cover in washing machine, use these general guidelines:

  • Water temperature:
    • Cold or warm water is commonly suggested to help prevent shrinking and fabric damage.
  • Detergent:
    • Use a mild, liquid detergent in a moderate amount.
  • Load size:
    • Wash the cover on its own or with a few lightweight items to avoid overloading.

Overstuffing the machine can stress zippers, seams, and waterproof layers.

4. Zip and secure before washing

Close all zippers, Velcro, and snaps to help:

  • Prevent snagging
  • Maintain the shape of the cover
  • Protect other fabrics in the wash

If the cover is large or delicate, placing it in a laundry bag can offer extra protection.

How should I dry my mattress cover after washing?

Drying is just as important as washing, especially for covers with waterproof or stretchy components.

Tumble drying

If the label allows machine drying:

  • Use low heat or no heat (air dry) to help reduce the risk of shrinking or warping.
  • Remove promptly to minimize wrinkles and help the fabric keep its shape.

Air drying

If you’re unsure, air drying is the gentlest option:

  • Lay the cover flat or drape it over a clean surface or drying rack.
  • Avoid direct, intense sunlight for long periods, which may fade colors or weaken some materials.

Never put a damp cover back on the mattress. Let it dry completely to avoid unwanted moisture buildup.

What if my mattress cover is waterproof?

Waterproof covers and protectors often have a thin waterproof membrane on one side. To help protect it:

  • Use cool or warm water, not very hot.
  • Choose a gentle cycle instead of a heavy-duty wash.
  • Avoid high heat in the dryer, which may damage the waterproof layer.

If the label mentions specific temperature limits, follow those closely.

How often should I wash a mattress cover in the washing machine?

Washing frequency depends on how much use the bed gets and whether there are spills or accidents. Common patterns are:

  • Every few weeks to every couple of months during typical use
  • Soon after any spills or stains to prevent odors and marks from setting

Washing too aggressively (very hot water, strong cycles, frequent high-heat drying) can wear out fabrics faster, so balance cleanliness with fabric care.

What if the label says “spot clean only”?

If the label warns against machine washing, then do not wash the mattress cover in the washing machine. Instead:

  • Lightly blot the stained area with a small amount of mild detergent and water.
  • Avoid soaking the cover, especially if it is attached directly to the mattress core.
  • Let it dry completely before putting sheets back on.

In these cases, the cover is usually not designed to be removed and fully washed.

✅ Quick Mattress Takeaways

Key points to understand about How To Wash Mattress Cover In Washing Machine

  • Always check the care label first to confirm if machine washing is allowed.
  • Use a gentle cycle with cold or warm water and a mild detergent.
  • Close all zippers and fastenings before washing to protect seams and fabric.
  • Avoid overloading the machine; wash the cover alone or with light items.
  • Dry on low heat or air dry, especially for waterproof or elasticized covers.
  • Do not machine wash covers labeled “spot clean only” or non-removable covers.
  • Let the cover dry completely before putting it back on the mattress.

Understanding how to wash mattress cover in washing machine helps you keep your sleep surface fresher, manage everyday spills, and care for your mattress over the long term. With a quick label check and the right settings, most washable covers can be cleaned safely and effectively.