How to Properly Wash and Care for Your Mattress Protector

4 min read

Key Takeaways:

• Wash your mattress protector every 1–2 months, or more often for allergies, pets, or spills.

• Use cool or warm water, mild detergent, and avoid harsh chemicals or high heat.

• Replace your protector when it loses its fit, waterproofing, or shows signs of wear.
  

A mattress protector is one of those bedding essentials you might not think about every day, but it works hard every single night. From guarding your mattress against spills and stains to shielding you from dust mites and allergens, it plays a huge role in keeping your bed fresh and healthy.

To make sure your mattress protector continues doing its job, it’s important to know how to wash and care for it properly. The right cleaning routine not only keeps it hygienic but also helps it last longer, saving you from having to replace it too soon. In this guide, we’ll walk you through everything you need to know, from how often to wash it, to the best techniques for different types, and how to store it when not in use.

Why Proper Care Matters

A mattress protector acts as a barrier between you and your mattress, catching sweat, body oils, dust, pet hair, and the occasional breakfast-in-bed mishap. Without regular cleaning, these can build up and lead to odours, discolouration, or even reduced protection.

If you’ve invested in a quality mattress protector, especially a waterproof one, following the correct care instructions will help maintain its protective layer. Washing it incorrectly can damage the waterproof membrane or cause shrinkage, which may affect the fit and performance. Just like your sheets and quilt covers, your mattress protector needs attention to stay fresh and functional.

How Often Should You Wash a Mattress Protector?

For most households, washing your mattress protector every one to two months is ideal. However, you may need to clean it more often if:

• You suffer from allergies or asthma and need to reduce dust mite exposure.

• You live in a warm climate and sweat more during the night.

• You allow pets on your bed.

• There’s been a spill or accident.

If your protector is brand new, give it a quick wash before first use. This will remove any packaging dust and help it settle nicely onto your mattress.

Step-by-Step Guide to Washing Your Mattress Protector

1. Check the Care Label

Before anything else, read the manufacturer’s care instructions. Some mattress protectors can go in the washing machine without issue, while others may require a gentle cycle or even handwashing. The label will tell you the safest temperature and whether tumble drying is recommended.

2. Pre-Treat Any Stains

If there are visible marks or spills, treat them before washing. Use a mild detergent or a gentle stain remover, and avoid bleach unless the label says it’s safe. Harsh chemicals can break down waterproof coatings or fabrics over time.

3. Use a Gentle Cycle and Mild Detergent

Place your mattress protector in the machine with similar items (avoid washing with heavy fabrics like towels, which can cause friction). Select a gentle or delicate cycle with cool or warm water, never hot unless specified. Hot water can damage elastic and waterproof layers.

4. Rinse Thoroughly

Make sure all detergent is rinsed out, as leftover soap can cause stiffness or irritation. If your washing machine has an extra rinse option, use it.

5. Air Dry or Tumble Dry Low

Most mattress protectors benefit from air drying, especially those with a waterproof backing. If tumble drying is allowed, use a low-heat setting to prevent warping or melting of protective layers.

Special Care for Waterproof Mattress Protectors

Waterproof protectors have a thin polyurethane or similar coating on the underside that blocks liquids from reaching your mattress. While durable, this layer can be sensitive to high heat or harsh detergents.

To keep it intact:

• Always wash in cool or warm water (never above 40°C).

• Avoid bleach, fabric softener, or dry cleaning.

• Air dry flat or tumble dry on the lowest heat possible.

Following these steps will ensure your waterproof mattress protector stays leak-proof and comfortable for years.

Can You Iron a Mattress Protector?

In short, no,  ironing a mattress protector is not recommended. The heat from an iron can easily damage or melt the waterproof backing, weaken elastic fibres, and shorten the overall lifespan of the product. Most protectors are designed to be low-maintenance, so there’s no need to press them flat. If your mattress protector comes out of the wash with wrinkles, simply allow it to dry fully and then fit it snugly over your mattress. The tension will naturally smooth out any creases, leaving it neat and comfortable without the risk of heat damage.

Storing Your Mattress Protector

If you need to store your mattress protector, for example, when rotating between seasonal bedding, the most important step is to ensure it is completely clean and thoroughly dry. Any lingering moisture can encourage the growth of mould or mildew during storage. Once dry, fold it neatly to minimise creasing and place it in a breathable cotton or linen storage bag, which allows air circulation while keeping dust away. Avoid sealing it in plastic bags, as they can trap humidity and cause damage over time. Store it in a cool, dry place away from direct sunlight.

Extending the Life of Your Mattress Protector

A well-made mattress protector can last up to five years or more with proper care. Here’s how to keep yours in top shape:

• Rotate it when you rotate your mattress to ensure even wear.

• Wash it promptly after any spills to avoid staining.

• Follow the exact washing and drying instructions every time.

• Use high-quality fitted sheets over your protector to reduce direct wear.

When to Replace Your Mattress Protector

Even with the best care, mattress protectors won’t last forever. It’s time to replace yours if you notice:

• Tears, holes, or fraying elastic.

• A loss of waterproofing (liquids seep through).

• Persistent odours or stains that won’t wash out.

• A poor fit on your mattress.

Replacing it when needed ensures your mattress continues to have the protection it deserves.

Get Your Perfect Mattress Protector at My Linen

When shopping for a new mattress protector, consider your specific needs. Waterproof designs are perfect for families, pet owners, or anyone prone to accidental spills. If you’re looking for an extra layer of comfort, opt for quilted or padded protectors, while hypoallergenic options are ideal for allergy sufferers. At My Linen, we offer a wide range of mattress protectors in sizes from single to super king, so you can find the perfect fit for your bed.

A quality mattress protector may be the unsung hero of your bedding, but with proper care, it can keep your mattress clean, fresh, and comfortable for years. Washing it correctly, drying it gently, and storing it in the right conditions will help you get the most out of your investment. If it’s time for a replacement, explore our full mattress protector collection to ensure your bed stays in the best condition possible.