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

If you’re wondering how to wash a mattress protector without ruining it, you’re not alone. Mattress protectors come in different materials and constructions, and many people worry about damaging the waterproof layer or shrinking the fabric. This guide walks through what to do (and what to avoid) so your protector stays clean and effective.

What Is a Mattress Protector and Why Does Washing Matter?

A mattress protector is a removable cover that sits on top of your mattress to help shield it from spills, sweat, dust, and everyday wear. Some are fully waterproof, others are water-resistant or just add a soft barrier.

Keeping it clean matters because:

  • Build-up of sweat and oils can wear down the fabric or waterproof backing.
  • Dust and debris can make your sleep surface feel less fresh over time.
  • Regular washing helps your protector last longer and stay comfortable.

Knowing how to wash a mattress protector correctly helps preserve both comfort and protection.

How To Wash a Mattress Protector: Step-by-Step

1. Check the Care Label First

Before anything else, read the care tag on your protector. It usually tells you:

  • Whether it’s machine washable or hand-wash only
  • The recommended water temperature
  • If it can go in the dryer and at what heat
  • Any special instructions (no bleach, no ironing, etc.)

When in doubt, follow the label over any general advice.

2. Remove and Pre-Treat Stains

Strip the mattress and gently shake out the protector to remove loose crumbs or dust.

For visible stains:

  • Dab (don’t rub) with a mild detergent solution or gentle stain remover.
  • Let it sit a few minutes, then wash as directed.

Avoid harsh scrubbing, which can damage the waterproof membrane.

3. Choose the Right Wash Cycle

Most fabric protectors do well with:

  • Cold or warm water, not hot
  • A gentle or delicate cycle
  • Mild liquid detergent (avoid powder if it tends to clump)

If your protector is waterproof, hot water or aggressive cycles can sometimes crack, peel, or warp the backing over time.

Common Questions About Washing a Mattress Protector

How often should you wash a mattress protector?

In many households, a mattress protector is washed every 1–2 months. You may want to wash more often if:

  • You sweat heavily at night
  • You share the bed with pets or young children
  • There has been a spill or accident

The key idea: wash it often enough to stay fresh, but not so frequently that you cause unnecessary wear.

Can you put a mattress protector in the dryer?

Most protectors can go in a dryer, but again, check the care label. General tips:

  • Use low heat or air-dry to protect elastic and waterproof layers.
  • Avoid high heat, which can cause shrinkage or damage.
  • Remove promptly to prevent wrinkles and over-drying.

If allowed by the tag, you can tumble with dryer balls to help it dry more evenly.

Can you wash a waterproof mattress protector the same way as a regular one?

The basic steps are similar, but waterproof protectors need extra care:

  • Prefer cool or warm water, not hot.
  • Use a gentle cycle with light spin.
  • Avoid fabric softeners, which can sometimes leave a film on waterproof surfaces.

Dry on low or no heat to keep the waterproof membrane intact.

What to Avoid When Washing a Mattress Protector

To keep your protector in good condition, avoid these common pitfalls:

  • High heat in the washer or dryer
  • Bleach (unless the label says it’s safe, which is rare)
  • Fabric softener on waterproof models
  • Ironing, especially on any coated backing
  • Dry cleaning, unless specifically recommended on the label

🚫 Overloading the washer can also prevent proper cleaning and may strain seams and elastic.

How To Dry and Store a Mattress Protector

After washing:

  • Make sure the protector is completely dry before putting it back on the bed, especially if it’s waterproof, to avoid trapped moisture.
  • If line-drying, hang it in a well-ventilated area out of direct, intense heat.
  • When not in use, store it folded in a cool, dry place so the backing doesn’t stick to itself.

❓ Troubleshooting: What If Something Goes Wrong?

What if my mattress protector shrinks?

If your protector comes out smaller than before, high heat was likely the cause. You can gently stretch it while damp, but severe shrinkage is usually permanent.

What if the waterproof layer peels or cracks?

This usually happens from heat damage, harsh detergents, or age. Once the layer is peeling, its protective performance is usually reduced, and many people choose to replace it.

✔️ Quick Mattress Takeaways

Key points consumers should understand about How To Wash a Mattress Protector

  • Always follow the care label; it’s the most reliable guide for your specific protector.
  • Wash every 1–2 months, or more often after spills or heavy use.
  • Use cool or warm water and a gentle cycle with mild detergent.
  • Avoid high heat, bleach, fabric softener (for waterproof types), and ironing.
  • Dry on low or air-only, and make sure it’s fully dry before use.
  • Handle waterproof protectors gently to keep the backing from cracking or peeling.

Keeping these basics in mind makes how to wash a mattress protector straightforward, helping you maintain a cleaner, more comfortable bed for the long term.