Organic Cotton Waterproof Mattress Protector - Quiet Zippered 3-Side Cover, Breathable
Worried about spills, sweat, and stains ruining your organic mattress? This organic cotton waterproof mattress protector keeps your bed fresh and clean without the plastic crunch, vinyl smell, or toxic chemicals found in most waterproof covers. It uses a very thin, plant-based moisture barrier that blocks spills and everyday accidents while staying soft, quiet, and breathable. Zippered on three of four sides for easy removal and cleaning.
Why Choose This Protector
✅ 100% organic cotton inside and out - Two layers of certified organic cotton knit feel like real fabric, not like sleeping on a plastic pad
🌱 Plant-based waterproof barrier - A cornstarch-derived TPU inner layer blocks moisture while making up less than 10% of the total fabric
🤐 Quiet and comfortable - No loud crinkling, no vinyl smell, and no stiff pad under your sheets
🔒 3-sided zipper design - Easy to put on and take off, with a sturdy zipper that fully encases the top and sides of your mattress
🛡️ Blocks dust and allergens - Lab tested with pores under one micron to help reduce exposure to dust and common household allergens
✂️ Handmade in the USA - Made in a GOTS-certified facility that specializes in organic bedding and natural mattresses
Materials & Feel
Most waterproof mattress protectors rely on vinyl or thick plastic that feels hot, noisy, and a little toxic. This one uses organic cotton on the outside and a very thin, plant-based moisture barrier on the inside. The inner layer is a bio-based TPU made from cornstarch and makes up less than 10% of the total fabric, so you get water-resistant protection without wrapping your bed in plastic. This construction meets strict organic textile manufacturing standards and is still uncommon, which is why you don't see many truly organic, low-plastic mattress protectors like this on the market.
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Outer fabric: 100% organic cotton knit, soft and flexible
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Inner barrier: Cornstarch-derived TPU, under 10% of total fabric content
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Overall feel: Smooth, quiet, and breathable, not plasticky or sticky
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Best for: Anyone who wants to protect a natural or organic mattress from everyday spills and sweat without sleeping on a noisy plastic cover
Available Sizes
Standard mattress sizes available:
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Crib
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Twin
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Twin XL
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Full
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Queen
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King
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California King
Thickness options: 2", 3", 4", 5", or 6" to fit toppers, shikibuton, and mattresses. Need it thicker? Just let us know.
💬 Need a custom size? Have a daybed, RV mattress, or vintage frame? Contact us with your exact measurements and we'll make a custom-fit organic mattress protector just for you.
Care Instructions
Proper care protects the integrity of the organic cotton and plant-based moisture barrier:
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Machine wash cold with like colors
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Use a gentle, natural detergent (no bleach, fabric softeners, or harsh chemicals)
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Tumble dry on low heat or air dry
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Avoid high heat, it can break down the TPU layer over time
Washing regularly and drying on low helps your protector last longer and keeps your mattress fresher.
Frequently Asked Questions
Q: How do I wash and care for this protector?
A: Machine wash cold with like colors using a gentle, natural detergent. Avoid bleach, fabric softeners, and harsh chemicals, which can damage the organic cotton and inner moisture barrier. Tumble dry on low heat or air dry. Do not use high heat, as it can break down the plant-based TPU layer over time. Washing regularly with proper care helps the protector last longer and keeps your mattress fresher.
Q: Is this protector fully waterproof?
A: It has a thin, plant-based moisture barrier designed to help block everyday spills and accidents while staying soft and breathable. It offers strong protection without feeling like a stiff vinyl pad.
Q: Will it change how my mattress feels?
A: It's meant to be a lightweight, flexible cover, so your mattress should feel very similar, just better protected. Most people notice the peace of mind more than any change in feel.
Q: Is it noisy or crinkly?
A: No. The organic cotton knit and thin inner layer are designed to move with your mattress quietly, so you won't hear that plastic rustling sound when you move.
Q: Do you make a fitted sheet style waterproof protector too?
A: Yes! If you prefer a fitted sheet style that slips on and off more like a regular sheet, check out our Organic Waterproof Mattress Protector - Fitted Sheet Style. It uses the same organic cotton and plant-based moisture barrier but with elastic edges instead of a zipper.
Q: Can I get waterproof pillow covers too?
A: Absolutely. We make Organic Waterproof Pillow Covers using this same fabric to protect your pillows from spills, allergens, and dust. Same quiet, breathable organic cotton with the plant-based moisture barrier.
Q: Where is this made and what certifications does it have?
A: This waterproof mattress protector is GOTS-certified organic, traceable from farm to finished product, and certified by OTCO, License OT-024293. Each protector is handmade in the USA in a facility that follows strict organic processing and manufacturing standards.
Please note that due to the natural materials used, this pillow cannot be washed or submerged in water. Instead, spot clean only. To rejuvenate your pillow, place it in the dryer, or allow it to bask in the sun for a few hours, harnessing nature's own sanitizing power.
We have a 30-day return/exchange policy, which means you have 30 days after receiving your item to request a return or exchange.
To be eligible for a return/exchange, your item must be in the same condition that you received it, unused, and in its original packaging.
To start a return, you can contact us at info@isleepsimple.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@isleepsimple.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Store Credit
We will notify you once we’ve received and inspected your return, we will let you know if the return was approved or not. If approved, you’ll be issued a store credit for your full purchase price that will be valid for 1-year.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not, please note there is a 25% restocking fee. If approved, you’ll be automatically refunded on your original payment method less the 25% restocking fee. Please remember it can take up to 14 business days for your bank or credit card company to process and post the refund too.
Free Shipping is included on all orders within the contiguous United States. We also offer Free Delivery & White Glove Service on qualifying orders within 150 miles of Brooklyn, New York.
Most soft goods such as pillows and fibers will ship within 1-2 week while larger items such as mattresses and toppers will ship within 2-4 weeks. Depending on the time of year and size of the order, these numbers can vary up to a week. Please allow 2-5 business days for shipping from Brooklyn, New York depending on your location. Upon shipment, you will receive automated tracking information.
For orders to Alaska and Hawaii may request a shipping quote by email prior to placing an order. You can email info@isleepsimple.com for a shipping quote. Please include your shipping address and what you would like to order.
Canadian and International buyers may request a shipping quote by email prior to placing an order. We can be reached by email at info@ISleepSimple.com, please include your full shipping address and what you would like to order. Please be aware that each country has the authority to levy fees, tariffs, and taxes on imported goods and in some cases a customs broker may be required. These are left to the discretion of the individual governments and vary from country to country and is the responsibility of the addressee, as he or she was the purchaser of imported goods.