Can You Wash Mattress Covers? A Practical FAQ Guide

If you’re wondering “Can you wash mattress covers?”, you’re not alone. Many people aren’t sure whether their mattress protector, encasement, or cover can go in the washing machine, how often to wash it, or how to avoid shrinking or damage. This guide walks through the most common questions in a clear, practical way.

What exactly is a mattress cover?

When people ask “Can you wash mattress covers”, they may mean a few different products:

  • Mattress protector – a removable layer that shields the mattress from spills, sweat, and everyday wear. Often waterproof or water-resistant.
  • Mattress encasement – a zippered cover that fully encloses the mattress, sometimes used for extra protection from dust and allergens.
  • Removable mattress cover – some mattresses have a zip-off fabric cover as part of their design.

Most of these are designed to be removable and washable, but the care method can vary by material and construction.

Can you wash mattress covers in a washing machine?

In many cases, yes, you can wash mattress covers in a washing machine, especially if they are labeled as machine-washable. However, it depends on:

  • Fabric type (cotton, polyester, bamboo blend, etc.)
  • Waterproof backing (such as a thin plastic or polyurethane layer)
  • Any special coatings or quilting

Always start by checking the care label on the mattress cover. It usually tells you:

  • Whether machine washing is allowed
  • Recommended water temperature
  • If bleach or fabric softener should be avoided
  • Whether tumble drying is safe

If there is no label, a cautious approach is to wash on a gentle cycle with cold or warm water, use a mild detergent, and avoid harsh additives.

How should you wash a mattress cover step by step?

Here’s a simple process that works for most washable covers:

  1. Remove the cover carefully
    Unzip or unfasten the cover and remove it from the mattress without pulling seams or zippers too hard.

  2. Check for stains
    Spot-clean visible stains first with a mild detergent and cool water.

  3. Use a gentle cycle

    • Wash in cold or warm water, not hot, unless the label clearly allows it.
    • Choose a gentle or delicate cycle to protect the fabric and waterproof layers.

  4. Use mild detergent
    Avoid bleach or strong chemicals unless the care label says they are safe, as they can weaken fibers or coatings.

  5. Rinse thoroughly
    An extra rinse can help remove leftover detergent, which may be helpful if you’re sensitive to residues.

Can you put a mattress cover in the dryer?

Many mattress covers can go in the dryer, but high heat can be risky, especially for:

  • Waterproof backing
  • Elastic sides
  • Certain synthetic fabrics

General guidelines:

  • If allowed, use a low heat or air-dry setting.
  • Avoid high heat, which may cause shrinking, melting, or cracking of waterproof layers.
  • If you’re unsure, line dry or lay flat to air dry.

Air drying can take longer, but it tends to be gentler on the materials and helps the cover last longer.

How often should you wash a mattress cover?

How often you wash depends on how you use your bed:

  • Typical use: every 1–3 months
  • If you sweat heavily, have spills, or have pets in bed: more frequently, such as once a month
  • After a spill or accident: wash as soon as you can

Regular washing helps keep the sleep surface fresh and comfortable and can reduce buildup of sweat, body oils, and everyday dust.

Can washing damage or shrink mattress covers?

Repeated washing can cause wear over time, but careful care usually helps avoid major problems.

Common issues:

  • Shrinking: More likely with hot water or high heat drying.
  • Peeling or cracking: Waterproof backing can break down with harsh detergents or high temperatures.
  • Warping or twisting: Overloading the washer or using aggressive cycles can stress zippers and seams.

To reduce these risks:

  • Follow the care label closely.
  • Use cooler water and lower dryer settings.
  • Avoid overloading the washing machine so the cover can move freely.

What if the mattress cover says “spot clean only”?

Some removable mattress covers are labeled “spot clean only”. This often means:

  • The fabric, stitching, or inner layers may not handle full submersion.
  • Washing could change the feel, loft, or structure of the cover.

If it says “spot clean only”:

  • Gently clean small areas with a cloth, mild detergent, and water.
  • Avoid soaking the entire cover or running it through the washer.
  • Let it dry completely before putting it back on the mattress.

When the cover itself can’t be washed, using a separate, washable mattress protector on top is a common way to keep cleanup easier.

Can you wash mattress covers with other laundry?

You often can, but it’s safer to:

  • Wash the mattress cover with similar lightweight items like sheets or pillowcases.
  • Avoid heavy items (like towels or blankets) that can twist or strain the cover.
  • Make sure zippers are closed so they don’t snag.

This helps protect the cover and keeps the washing machine balanced.

✔️ Quick Mattress Takeaways

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

  • Most mattress protectors and many encasements are designed to be machine-washable, but the care label is your best guide.
  • Cool or warm water, gentle cycle, and mild detergent are usually the safest default settings.
  • High heat in the washer or dryer can shrink fabric or damage waterproof layers, so lower temperatures are often safer.
  • Wash your mattress cover every 1–3 months, or more often if there are spills, pets, or heavier use.
  • If the label says “spot clean only”, avoid full machine washing and use a separate washable protector on top for easier maintenance.
  • Dry on low heat or air dry whenever possible to extend the life of the cover.

By understanding how and when you can wash mattress covers, you can help keep your sleep surface cleaner and your mattress protected for longer.