Keeping your mattress clean is important, and a waterproof mattress cover is a key part of that. If you’re wondering how to wash a waterproof mattress cover, you’ve come to the right place. It might seem tricky, but with the right steps, it’s simple. This guide will walk you through everything you need to know. We’ll cover how to prep, wash, and dry it properly. Let’s get started.
How to Wash a Waterproof Mattress Cover
First things first, always check the care label. This is the most important step. The manufacturer’s instructions are your best guide. They will tell you the water temperature, cycle type, and drying method that’s safe for your specific cover. If the label is missing, don’t worry. The following steps are a safe, general method that works for most waterproof mattress protectors.
What You’ll Need
Gathering your supplies before you start makes the process smoother. You won’t need anything special, just a few common household items.
- Mild laundry detergent (avoid bleach or fabric softener)
- A washing machine
- A dryer or a place to air dry
- White vinegar or baking soda (optional, for odor removal)
- Clean cloths
Step 1: Strip the Bed and Pre-Treat Stains
Remove the cover from your mattress. Take off all bedding, like sheets and pillowcases, first. Then, carefully take the waterproof cover off. Check it over for any visible stains, such as from spills or sweat. Pre-treat these areas before washing. You can use a small amount of your mild detergent directly on the stain. Gently rub it in with a clean cloth and let it sit for about 10-15 minutes.
Step 2: Prepare the Cover for Washing
Most waterproof covers have a soft top layer and a waterproof backing. It’s a good idea to turn the cover inside out before washing. This helps protect the waterproof layer during the wash cycle. It also allows the inner fabric, which touches your sheets, to get a deeper clean. Make sure any zippers or closures are fully fastened so they don’t snag.
Dealing with Odors
If your cover has developed a mildew or persistent body odor smell, you can add a natural deodorizer. Add one cup of white vinegar to the detergent dispenser or directly to the drum. Alternatively, you can sprinkle a half-cup of baking soda over the cover in the drum before starting the cycle. These help neutralize smells without damaging the material.
Step 3: Choose the Correct Washing Machine Settings
Getting the settings right is crucial for maintaining the cover’s waterproofing. Harsh cycles can damage the delicate membrane.
- Water Temperature: Use COLD or WARM water. Avoid hot water, as it can break down the waterproof coating over time.
- Cycle Type: Select a GENTLE or DELICATE cycle. These cycles use slower agitation, which is gentler on the cover.
- Detergent: Use a mild, liquid detergent. Do not use chlorine bleach. Also, avoid fabric softener entirely. Fabric softener can coat the waterproof fibers, making them less effective and potentially causing them to repel moisture poorly.
- Extra Rinse: If your machine has the option, an extra rinse cycle can be helpful. It ensures all soap residue is removed, which can also affect performance.
Step 4: Drying Your Mattress Cover Thoroughly
Drying is just as important as washing. Incomplete drying can lead to mold and mildew growth inside the layers.
- Tumble Dry Low: This is the safest and most effective method. Use a LOW heat setting. High heat can melt or crack the waterproof layer. Toss in a couple of clean, dry towels to help absorb moisture and speed up drying time.
- Air Drying: You can air dry the cover if you prefer. Hang it over two or three parallel laundry lines, or lay it flat over several chairs. Ensure it is completely dry on both sides before putting it back on the mattress. This method takes longer but eliminates any heat risk.
Never put a waterproof mattress cover in the dryer on high heat. And never iron it, as the direct heat will destroy it. Make absolutly sure the cover is 100% dry before you store it or put it back on your bed.
Step 5: Putting the Clean Cover Back On
Once your cover is completely dry, it’s time to put it back on. Make sure your mattress is clean and free of dust. Carefully fit the cover over your mattress, aligning the corners. If it has elasticized skirts, pull them snugly around the edges. If it’s a zippered encasement, zip it up slowly, ensuring the fabric doesn’t get caught in the zipper. Then, you can put your clean sheets on top.
Special Considerations for Different Types
Not all waterproof covers are the same. The material can change the care instructions slightly. Here’s what to keep in mind.
Vinyl or Plastic Covers
These are common and very affordable. They are also the most delicate. Always use cold water and the gentlest cycle. Air drying is often recommended for vinyl covers, as dryer heat can make them brittle and crack. Wipe them down regularly between washes to extend their life.
Fabric-Backed (TPU or PUL) Covers
These have a polyurethane laminate layer under a fabric like cotton or polyester. They are quieter and more comfortable. The steps outlined above are perfect for these types. They generally withstand machine washing and low-heat drying very well.
Wool or Bamboo Waterproof Covers
These are natural and breathable options. They require extra gentleness. Use a wool-specific detergent or a very mild, natural detergent. Always wash in cold water on a gentle cycle. Air drying is strongly preferred to prevent shrinkage. Check the care label meticulously for these premium covers.
Common Mistakes to Avoid
A few simple errors can shorten the life of your protector. Here’s what not to do.
- Using Bleach or Harsh Chemicals: These will break down the waterproof barrier quickly.
- Overloading the Washer: Wash the cover alone or with a few towels. An overloaded washer won’t clean properly and causes extra friction.
- Using Fabric Softener: We mentioned it before, but it’s worth repeating. It clogs the pores of the waterproof layer.
- High Heat in the Dryer: This is the fastest way to ruin your cover. Stick to low heat.
- Putting it Back On Damp: Trapped moisture creates the perfect environment for mold on your mattress.
How Often Should You Wash It?
You should wash your waterproof mattress cover regularly to maintain hygiene. A good rule of thumb is to wash it every 1 to 2 months. However, you should wash it immediately if there is a spill, accident, or if it becomes stained. If you suffer from allergies, washing it every month can help reduce allergen buildup. Remember, it’s protecting your mattress from dust mites, sweat, and spills, so keeping it clean is essential.
Between-Wash Care
To keep your cover fresh between washes, vacuum it lightly when you change your sheets. You can also spot clean small areas with a damp cloth and a tiny bit of mild soap. Let the spot air dry completely before covering it with sheets again.
Fixing Common Problems
Sometimes issues pop up. Here’s how to handle them.
If the Cover Becomes Less Waterproof
If you notice the cover is starting to let moisture through, it might be due to soap residue or coating wear. First, try washing it again without any detergent. Use hot water and an extra rinse cycle to strip away any leftover residue. If that doesn’t work, the waterproof coating may be worn out, and it might be time for a replacement.
Removing Tough Stains
For stubborn stains like blood or urine, act quickly. Blot up as much as possible. Soak the stained area in cold water with a bit of enzyme-based cleaner (good for biological stains) for 30 minutes before washing. For older stains, a paste of baking soda and water applied before washing can help lift them.
Eliminating Persistent Odors
For strong mildew smells, wash the cover with one cup of white vinegar (no detergent) on a warm cycle. Then, wash it again with mild detergent to remove the vinegar smell. Sun drying is excellent for killing odor-causing bacteria, so if you can air dry it in direct sunlight, that’s a great bonus.
FAQ Section
Can you put a waterproof mattress protector in the dryer?
Yes, you usually can, but only on a LOW heat setting. High heat will damage the waterproof layer. Always check the care label first. Air drying is a safe alternative.
What is the best way to clean a waterproof bed cover?
The best way is to follow the care label. Generally, wash it inside out on a gentle cycle with cold water and mild detergent. Avoid fabric softener and dry it thoroughly on low heat or air dry.
How do you wash a mattress protector that says do not wash?
If the label says “Do Not Wash,” it is likely only meant for spot cleaning. Use a damp cloth with a small amount of mild soap to clean soiled areas. Do not immerse it in water or put it in the washing machine, as this will void its warranty and likely ruin it.
Can I use vinegar to wash my mattress cover?
Yes, white vinegar is a great natural cleaner and deodorizer. Add one cup to the rinse cycle or to the detergent dispenser. It helps remove odors and soap residue without harming the waterproof coating.
Why does my mattress cover smell after washing?
A lingering smell is often caused by incomplete drying. Moisture trapped in the layers can cause mildew. It can also be from soap residue. Ensure you dry it completely every time, and consider using less detergent or an extra rinse cycle.
How often should you replace a waterproof mattress cover?
With proper care, a good quality cover should last 2 to 5 years. Replace it if you see tears, if the elastic wears out and it no longer fits snugly, or if it stops being waterproof despite proper cleaning.
Taking care of your waterproof mattress cover isn’t difficult. It just requires a bit of know-how. By following these simple steps—using gentle cycles, cold water, no softener, and low heat—you can keep your protector in great shape for years. This protects your mattress investment and ensures you have a clean, healthy place to sleep every night. Remember, a clean cover is the first line of defence for your mattress.