














Extra Firm Cotton Mattress
Extra Firm Cotton Mattress – Handmade in the USA | Ultimate Firm Support
🛏️ Looking for the firmest, most supportive sleep surface? Our Extra Firm Cotton Mattress is designed with dense layers of natural cotton and a thin outermost layer of wool for added breathability, durability, and safety. Whether you prefer firm support for better spinal alignment or need a minimalist, no-sink sleeping experience, this Extra Firm Cotton Mattress is built to provide ultimate comfort while staying true to nature.
🌿 Premium Natural Materials:
- ✅ Core: Made with multiple layers of natural cotton, providing exceptional density and firm support for a truly solid sleep foundation.
- ✅ Wool Layer: A thin, natural wool layer sits just beneath the casing, adding:
- 🌡️ Temperature Regulation – Helps keep you cool in summer and warm in winter.
- 🔥 Natural Flame Retardant – Meets fire safety standards without synthetic chemicals.
- 🌬️ Moisture-Wicking Properties – Reduces humidity buildup for a fresher sleep.
- ✅ Casing: Wrapped in a GOTS-certified organic cotton twill cover, offering a soft, breathable, and durable exterior free from synthetics.
💪 Why Choose This Extra Firm Cotton Mattress?
✔ Superior Firmness – Provides extra firm support, ideal for those needing a stable, no-sink feel.
✔ Wool for Safety & Comfort – Naturally flame-resistant, moisture-wicking, and temperature-regulating.
✔ Minimalist & Versatile – Perfect for floor sleeping, tatami mats, platform beds, or futon frames.
✔ Handmade in the USA – Expertly crafted for durability and long-lasting performance.
✔ Breathable & Non-Toxic – Free from synthetic foams, adhesives, and chemical flame retardants.
💤 Sleep Simply & Naturally – With its pure cotton core, breathable wool layer, and organic cotton twill casing, this Extra Firm Cotton Mattress is the ultimate eco-friendly, extra-firm sleep solution for those who value both comfort and sustainability.
📏 Sizes & Weights:
Toddler 28" x 54"x 3.5” 20 - 30 lbs.
Twin 39" x 75" x 6" 70 - 80 lbs.
Twin XL 39" x 80" x 6" 75 - 85 lbs.
Full 54" x 75" x 6" 85 - 95 lbs.
Queen 60" x 80" x 6" 105 - 120 lbs.
King 76" x 80" x 6" 145 - 165 lbs.
California king 84" x 72" x 6" 145 - 165 lbs.
**Weights for our Extra Firm Cotton Mattresses are not exact and can vary**
Please note: Some of our products may retain their natural scent for a couple of weeks, while most people LOVE the scent, others may not. What is important to know is I Sleep Simple uses only natural and organic ingredients in the production process and there are never any fragrances, chemicals, or dyes added to fibers and materials.
Shipping: Shipping is always free within the contiguous US, If you are in PR, AK, HI or outside of the US, please contact me for shipping costs 💕
Made with LOVE in the USA
Return Policy: Ask about my 120-day love it or return it policy!
Love it or leave it Mattress Guarantee
120-Night Mattress Guarantee:
*Please note this guarantee applies Only to I Sleep Simple Mattresses only* (See Disclaimer below)
Not sure if an I Sleep Simple mattress is right for you?
Sleep on an I Sleep Simple mattress for up to 120 nights, if you don't love it, return it for a full credit or refund less a 30% restocking fee!
120-Night Mattress Return Policy - Start your return with one of these two simple options:
Option 1: Product Defect
If your mattress has a physical defect, please contact us via phone or email within 15 days of your purchase. Send photos of the issue(s) without any bedding as soon as possible so that we can figure out the best solution to your problem (i.e., replacement or repair).
Option 2: Satisfaction
If you are unhappy with the mattress(s), please contact us within 120 days of your purchase and present your concerns so that we can review your case and consider the next best steps to ensure your satisfaction. Our main goal is to make sure you are happy!
How will the mattress(es) reach I Sleep Simple for a return or exchange?
If you are within a 150 miles radius of our main location, in Brooklyn, NY, we would be happy to arrange removal at no cost to you. If you are outside of this radius, upon I Sleep Simple’s discretion, we would either direct you to a service that can have the mattress picked up from you and discarded or we would kindly ask you to send us proof that you have disposed of it, this is decided in a case-by-case basis. Once the mattress has been removed and as per our printed warranty, we would then credit you the purchase price or refund you the amount paid for your mattress less a 30% restocking fee as per our guarantee. If you would like to begin a site inspection, return, or exchange, please email info@isleepsimple.com. You will need a copy of your original receipt to be eligible for a refund or exchange.
PLEASE NOTE: It is I Sleep Simple’s own discretion, to pick up the mattress, send a third party to pick it up or ask you to kindly dispose of it. For legal and accounting purposes, we will request that you please send us pictures and a note stating and showing it has been discarded before we can process any refunds or credits depending on the final decisions we agree upon.
DISCLAIMER: To qualify for our 120 night sleep guarantee:
- You must have slept on your I Sleep Simple mattress for at least 30 nights. (with our natural mattress, it can sometimes take your body a few weeks to adjust)
- Your mattress must be covered with a mattress protector and be free of any stains or damage.
- You must have ordered your mattress directly from the ISleepSimple.com website or through Esty.
- This must be your first mattress return from I Sleep Simple.
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.