Obasan
Organic Cotton Mattress Protector
Our organic cotton mattress protector offers soft, breathable protection for your mattress. Made with GOTS-certified organic cotton fabric, it ensures optimal comfort while absorbing body moisture and natural skin oils.

Ideal For
Ideal For
- Children, to provide them with a healthy sleeping environment, free from irritating chemical substances.
- Accidental spills. Machine washable, it regains its freshness after each cleaning.
- All mattresses thanks to its elastic design and adjustable pocket up to 16" thick. It is particularly recommended to protect your investment in an organic latex mattress.
- People with allergies. Organic cotton is naturally hypoallergenic and repels dust mites and allergens, creating a soft barrier between you and your mattress.
Features and warranty
Features and warranty
- Size: Twin (39"x75"), Twin XL (39"x80"), Double (54"x75"), Queen (60"x80"), King (76"x80"), California King (72"x84")
- 3-year limited warranty
- GOTS certification: Certified organic cotton, without pesticides or chemicals
- Made in Canada: Handcrafted in our Ottawa workshop
Couldn't load pickup availability

Why choose an organic cotton mattress protector?
The GOTS-certified organic cotton used in our mattress protector offers a healthy alternative to synthetic protections. Unlike polyester covers or plastic membranes, our organic cotton mattress protector allows your skin to breathe naturally throughout the night.
Breathable and absorbent protection
Organic cotton has natural moisture-wicking properties. It captures perspiration and body oils, keeping your custom organic mattress clean and fresh longer. This breathability is essential for maintaining a comfortable sleep temperature all night long.
Natural softness and comfort
With its 4-way stretch knit, this organic mattress protector perfectly hugs the contours of your mattress without creating tension. You benefit from a soft, pleasant sleeping surface, as if you were sleeping directly on your organic percale cotton sheets.
GOTS certification: the guarantee of pure cotton
GOTS (Global Organic Textile Standard) certification guarantees that our cotton is grown without pesticides or harmful chemicals. It's the same level of quality we apply to all our organic materials, from organic latex to Patagonian wool.
Complete your organic bedding
For a 100% natural sleep experience, pair your organic cotton mattress protector with our complete range of handcrafted organic bedding.
Our organic latex and wool pillows offer personalized support according to your sleeping position, while our wool mattress toppers add an extra layer of plush comfort to your bed.
For maximum moisture protection, discover our organic wool mattress protector, which absorbs up to 30% of its weight in moisture while remaining dry to the touch.
Invest in healthy and sustainable protection
Protecting your mattress with an organic cotton mattress protector means choosing healthy, durable bedding that respects your health. Made in Canada with certified organic materials, this mattress protector embodies our commitment to your well-being and the environment.
Order now or contact our sleep experts at 1-877-762-2726 or by email at info@obasan.com for personalized advice.
Frequently Asked Questions
What is the difference between the cotton and wool mattress protector?
The organic cotton mattress protector is ideal for those looking for lightweight, breathable, and easy-to-care protection. It is particularly suitable for warm climates and people who prefer a cool sensation.
The wool mattress protector, on the other hand, offers superior moisture absorption (up to 30% of its weight) and exceptional temperature regulation. It is recommended for families with young children, elderly people, or those looking for maximum protection.
Is the organic cotton mattress protector waterproof?
No, this mattress protector is not waterproof. It is designed to be breathable and absorbent, which promotes air circulation and prevents heat buildup. It absorbs body moisture and skin oils, but is not designed for significant liquid spills.
For waterproof protection while remaining natural, we recommend our organic wool mattress protector, whose natural fibers repel moisture.
How do I wash my organic cotton mattress protector?
Machine wash in cold water with a mild, preferably eco-friendly detergent. Use the delicate cycle to preserve the fibers. Dry on low heat in the dryer or air dry to extend its lifespan. Avoid bleach and harsh chemicals that could damage the organic cotton.
Is it hypoallergenic?
Absolutely. GOTS-certified organic cotton is naturally hypoallergenic because it is grown without pesticides, herbicides, or irritating chemicals. Its breathable structure also discourages dust mite proliferation, making it an excellent choice for people suffering from allergies or asthma.
Does the mattress protector fit thick mattresses?
Yes! Thanks to its peripheral elastic and 4-way stretch fabric, this mattress protector fits perfectly on mattresses up to 16" (40 cm) thick. It is therefore suitable for standard Obasan mattresses, as well as mattresses with integrated toppers.
Can I use it with a mattress topper?
Yes, you have two options:
Place the mattress protector directly on the mattress, then add the topper on top
Place the mattress protector over the topper, to protect the entire mattress + topper set
The second option is recommended if your topper is thin and the total thickness does not exceed 16".