A new mattress is a big investment, and a good protector is the cheapest way to keep it clean — and to keep its warranty valid, since most brands void coverage for stains. The problem: many waterproof protectors use vinyl or plastic-heavy backings that crinkle and trap heat. Organic protectors pair certified organic cotton with a thin, quiet waterproof film instead. Here’s what to look for and the ones we’d shortlist.
Our picks at a glance
- Best overall: Sleep & Beyond Organic Cotton Waterproof Mattress Protector
- Best wool-filled (temperature-regulating): Sleep & Beyond myProtector®
- Best MADE SAFE certified option: Naturepedic Waterproof Organic Mattress Protector Pad
- Best if you don’t need waterproofing: Avocado Organic Mattress Pad Protector
What to look for in an organic mattress protector
- Certified organic fabric. Look for GOTS (Global Organic Textile Standard) certification, which covers organic fiber and how it’s processed — not just a vague “organic” label.
- The waterproof layer. Thin TPU (thermoplastic polyurethane) films block liquids while staying quiet and more breathable than vinyl/PVC. Avoid vinyl if you want to skip PVC and phthalates.
- Breathability. Hot sleepers should favor a thin membrane under a cotton surface — heavy plastic-backed protectors are a common cause of sleeping hot. See our best sheets for hot sleepers for more ways to sleep cool.
- Fit depth. Measure your mattress, including any topper. A 14-inch mattress like the Amerisleep AS5 needs a protector rated for at least that depth.
- Shrinkage and care. Organic cotton shrinks in the first few washes, and high heat can damage waterproof films. Follow the care label.
- Return terms. Many bedding brands only accept unused protectors in original packaging — check before you open it.
The best organic waterproof mattress protectors
1. Sleep & Beyond Organic Cotton Waterproof Mattress Protector — best overall
This protector uses 200 gsm organic cotton jersey certified to GOTS (certificate GOTS-10180), laminated to an ultra-thin 20-micron TPU film that Sleep & Beyond says is bio-based, made from corn starch, and OEKO-TEX certified. It’s waterproof on the top and all four sides, which Sleep & Beyond describes as silent and crinkle-free, and it fits mattresses up to 18 inches deep — enough for tall mattresses and many toppers. It’s made about 2–3 inches oversized to allow for organic cotton’s shrinkage, which Sleep & Beyond says settles after two to five washes.
Price: $99–$209 depending on size (October 2026). Warranty: 10 years.
Good to know: wash warm and tumble dry low — medium or high heat and ironing can damage the waterproof film. Sleep & Beyond accepts returns within 30 days only for unused items in original packaging, so confirm your size before opening it.
Check the Sleep & Beyond protector price →
2. Sleep & Beyond myProtector® — best wool-filled protector
The myProtector® is a 2-in-1: a waterproof protector with a layer of washable Shropshire wool filling under a 270-thread-count natural cotton percale top. Wool naturally helps regulate temperature, so Sleep & Beyond pitches it for people who overheat or get cold at night, and for allergy sufferers concerned about dust mites. The wool is Woolmark certified and the cotton and wool are OEKO-TEX certified. It fits mattresses up to 18 inches deep, and Sleep & Beyond recommends a front-load washer.
Price: $139–$209 (October 2026). Warranty: 10 years against manufacturing defects; Sleep & Beyond says that if you buy it on the same receipt as a new mattress, the warranty also covers the mattress surface against stains while the protector was in use.
Good to know: the waterproof lining is a TPU-coated microfiber, so this is a natural-fill option rather than a fully organic one. Same 30-day, unused-only return policy as above.
Check the myProtector® price →
3. Naturepedic Waterproof Organic Mattress Protector Pad — best MADE SAFE option
Naturepedic’s protector pairs GOTS-certified organic cotton jersey with an ultra-thin TPU barrier, with no vinyl/PVC or phthalates. It’s also MADE SAFE certified, a standard that screens products for harmful chemicals. The elastic perimeter fits mattresses about 9 to 16 inches deep. A queen listed at $199 in October 2026 (sale prices vary by size), with free returns within 30 days in original packaging and a 1-year limited warranty.
Good to know: its 16-inch maximum depth is lower than Sleep & Beyond’s 18 inches — check your mattress height.
See the Naturepedic protector →
4. Avocado Organic Mattress Pad Protector — best if you don’t need waterproofing
If you’d rather have no plastic membrane at all, Avocado’s GOTS-certified pad is a quilted layer of organic cotton filling under a 300-thread-count sateen cover. It adds a little cushioning and protects against everyday wear — but it is not waterproof, so it won’t stop spills or accidents. A queen costs $280 (standard pocket, up to 15 inches) or $305 (deep pocket, up to 22 inches).
See the Avocado pad protector →
Comparison table
| Protector | Waterproof? | Materials | Fits up to | Price* | Warranty |
|---|---|---|---|---|---|
| Sleep & Beyond Organic Cotton | Yes, 5-sided | GOTS organic cotton jersey + bio-based TPU | 18 in | $99–$209 | 10 years |
| Sleep & Beyond myProtector® | Yes | Wool fill, cotton percale top, TPU-coated lining | 18 in | $139–$209 | 10 years |
| Naturepedic Organic Protector Pad | Yes | GOTS organic cotton jersey + TPU; MADE SAFE | About 16 in | Queen $199 | 1 year |
| Avocado Organic Pad Protector | No | GOTS organic cotton, quilted, sateen cover | 15 or 22 in | Queen $280–$305 | See Avocado |
*Prices on each brand’s website in October 2026; Sleep & Beyond ranges cover all sizes. Check current pricing and return terms before ordering.
Shop Sleep & Beyond organic bedding →
Do you really need a mattress protector?
Most people should use one. Beyond spills and accidents, a protector blocks sweat and body oils that break down foam over time, and it’s often required to keep a mattress warranty valid. Many mattress warranties exclude stained or soiled mattresses, so check your warranty terms. Shopping for a mattress too? See our best mattress for side sleepers and Amerisleep AS3 review.
Frequently asked questions
Are waterproof mattress protectors hot?
Thick vinyl or plastic-backed protectors can be. Protectors with a cotton surface over a thin TPU film, like the ones above, are designed to breathe better and stay quiet.
What is TPU, and is it safe?
TPU (thermoplastic polyurethane) is a thin, flexible film used as the waterproof layer in many protectors. It’s an alternative to vinyl/PVC and doesn’t require phthalate plasticizers. Look for third-party certifications such as OEKO-TEX on the film.
Will an organic cotton protector shrink?
Yes, organic cotton shrinks in the first few washes. Sleep & Beyond makes its protector 2–3 inches oversized to allow for this. Wash on warm or cool and dry on low heat.
How often should I wash a mattress protector?
A common recommendation is every one to two months, and right away after spills — always following the care label to protect the waterproof layer.
Can I return a mattress protector after opening it?
Often not. Sleep & Beyond only accepts unused items in original packaging within 30 days, and Naturepedic’s free returns also require original packaging. Check your mattress depth before opening.