Avocado Green Extra Firm Organic Mattress:
Twin: 75" x 38" x 9.75" — 93 lbs.
XL Twin: 80" x 38" x 9.75" — 94 lbs.
Full: 75" x 54" x 9.75" — 125 lbs.
Queen: 80" x 60" x 9.75" — 148 lbs.
King: 80" x 76" x 9.75" — 188 lbs.
California King: 84" x 72" x 9.75" — 187 lbs.

Mattress ships and delivers flat. It is not compressed or roll-packed.

Weight Support: Up to 550 lbs per person, or 1,100 lbs total. Two full coil units instead of one — 1,600 individually wrapped coils in Queen, all 14-gauge double-tempered recycled steel, separated by an organic coconut fiber pad infused with GOLS-certified organic latex. The highest weight capacity of any GOTS-certified organic mattress. Queen and larger require a rigid center support beam with at least one leg to the floor; our Heavy-Duty Foundation (low and standard profile) adds more slats, up to four interior support bars, and 12 leg supports, and is rated to 2,000 lbs of total load.

The firmest mattress we offer. Purpose-built for big-and-tall sleepers, plus-size individuals, athletes, and anyone who prefers an ultra-firm sleep surface, this mattress delivers maximum support without compromise. It resists sagging and ensures your body remains aligned all night long. There’s no sink, no bounce — just solid, consistent support across the entire surface. See: Which Firmness is Right for Me?

Winner of the 1% for the Planet Pinnacle Award.
Winner of the Good Housekeeping Sustainability Innovation Award.
Certified B Corporation — "Best for the World" Winner.
GOTS Organic Certification from Control Union (CU 863637).
OEKO-TEX® STANDARD 100: Product Class I (24.HUS.86422).
EWG Verified® for health, safety, and transparency.
Certified to MADE SAFE® standards.
GREENGUARD Gold Certified by UL® Environment for low emissions.
Formaldehyde-Free Claim Verified by UL® Environment.

Handmade in Fullerton, California (greater Los Angeles) with domestic and imported materials. Our Extra Firm Mattress requires paid In-Home Delivery & Setup due to its weight and construction. Our In-Home Delivery shipping provider will contact you directly to schedule your delivery. Please allow additional time for In-Home Delivery & Setup services. In-Home Delivery & Setup is available within the continental United States only. At this time, furniture, mattress, and/or bedding orders can not be coordinated to arrive at the same time.

See: What's Inside an Avocado Mattress: Layer-by-Layer Construction.

Our Dunlop latex carries both GOLS certification (CU 863637) for organic content and FSC® certification (FSC-C156318) for responsible plantation management. It's sourced from co-owned farmer societies and processing facilities in India and Guatemala operating under the USDA's National Organic Program, with 95% or more certified organic content and processing in GOLS-certified facilities.

In the Extra Firm, we use D65 — our firmest Dunlop density, perforated and ventilated so air moves through it rather than sitting against your body. It sits directly on the coconut fiber pad and carries load with it; there's no soft transition layer here. Also eco-INSTITUT® label certified (119-34212-001), confirming low emissions and pollutant content.

A one-ounce-per-square-foot layer of pure organic wool sits beneath the cotton cover, certified to the Responsible Wool Standard by Textile Exchange® for animal welfare and land management. Wool does three things here. It wicks moisture away from the surface, which matters more the warmer you sleep. It resists odor, so the mattress stays fresh without treatment. And it passes federal flammability standards on its own — which is why there are no chemical flame retardants in this mattress, and no rayon or polyester blended into the wool to get there. It's also a renewable material, and an alternative for anyone sensitive to down or synthetic bedding.

For a luxurious and premium finish, we use GOTS-certified organic cotton (CU863637) in a soft, natural color blended with 3% elastane for functional stretch and enhanced durability—fully compliant with GOTS standards. This fabric is quilted over a generous layer of organic wool, supported by a thin, non-woven backing—added in accordance with GOTS accessory requirements—to prevent the wool from shifting or clumping and to keep natural fibers from working through the outer cotton over time. Responsibly and ethically sourced from India, this durable textile is hand-needle-tufted using organic wool yarn rosettes. These secure the cotton ticking and internal mattress layers without chemical or water-based adhesives. Reinforced edge seams are double-stitched for added durability, and four heavy-duty upholstered handles make the mattress easy to rotate or move. Organic cotton complements the wool comfort layers, ensuring this mattress sleeps cool without synthetic fabrics or flame retardants.

The Avocado Extra Firm Mattress features a purpose-built, heavy-duty support system that delivers exceptional firmness, pressure relief, and long-term durability. Rather than relying on thick synthetic foam layers, this mattress features a dual-coil construction separated by natural coconut fiber pads, designed to meet the needs of heavier sleepers, big and tall individuals, athletes, or anyone who prefers an ultra-supportive mattress.

The mattress includes two 3-inch layers of individually wrapped, heavy-gauge coils, each floating independently within a food-grade, non-woven polypropylene fabric. We manufacture these coil units ourselves rather than buying them from a spring supplier — which is why both units run uniform 14-gauge double-tempered recycled steel instead of whatever a catalog offers.

Three 0.5-inch layers of organic coconut fiber infused with organic latex run through the mattress: one above the top coil unit, one between the two units, and one below the bottom. The top pad stiffens the surface beneath the latex. The middle pad keeps the two coil units from nesting into each other, so they behave as a single rigid structure rather than two stacked springs. The bottom pad spreads load across the foundation. All three are dense enough to add firmness while staying open enough for air to move, and none of them is glued in place.

The coils are assembled using an environmentally conscious adhesive composed of tested components (Waxes: CAS 8002-74-2, Resin: CAS 8050-26-8, Antioxidant: CAS 6683-19-8, EVA Polymer: CAS 24937-78-8). They are needle-tufted by hand with up to 9 wool rosettes, eliminating the need for chemical flame retardants or glues between layers.

The entire innerspring system is part of the finished mattress that meets OEKO-TEX® STANDARD 100, EWG Verified®, MADE SAFE®, GREENGUARD Gold, and UL® Formaldehyde-Free Claim Verification standards, ensuring the mattress is held to the most rigorous standards for environmental safety and human health. With its advanced dual-coil design and ultra-firm feel, the Extra Firm Mattress delivers unmatched support, durability, and breathability, making it the ideal mattress for plus-size sleepers, back and stomach sleepers, and those seeking a firm, organic mattress that performs.

Heat is a bigger problem the more you weigh. More mass means more heat to shed — and on a conventional mattress, more weight means sinking deeper into foam that holds it against you. This one doesn't let you sink, and there's no polyurethane foam in it to begin with. Organic wool sits directly beneath the cotton cover, wicking moisture off your skin and regulating in both directions — the same layer that keeps you cool in July keeps you warm in January. Below it, perforated latex and two units of open coil give heat somewhere to go.

Avocado Mattresses undergo rigorous third-party durability testing, including the industry-standard Rollator and Cornell tests. We proudly publish our test results to ensure full transparency and to validate the durability of our natural, organic design.

As a natural wool mattress, this design meets flammability standards without the use of chemicals — a safer choice for eco-conscious sleepers. The Avocado Extra Firm Mattress uses only GOTS-certified organic wool, which is naturally fire-resistant.

PFAS — per- and polyfluoroalkyl substances — are synthetic chemicals used industry-wide for waterproofing, stain resistance, and flame retardancy. They persist in the environment and the human body, which is why they're called "forever chemicals." We don't use chemical treatments or chemical flame retardants, and we validate that claim with lab testing.

Our 2026 independent third-party program covers 679 individual PFAS substances — up from 320 in 2024 — across our organic cotton, organic wool, organic latex, crib mattress core, and every component of our Waterproof Mattress Protector. Testing was performed by Intertek, an ISO/IEC 17025-accredited laboratory, using targeted LC/MS/MS and GC-MS methods at a detection limit of 10 parts per billion for most substances. The result across every component tested: none detected.

Some industry certifications screen a smaller panel — around 80 compounds — and rely on a 50-ppm total-fluorine threshold, roughly 5,000 times less sensitive than our per-substance limit, and don't publish the underlying results. Avocado publishes the full Intertek reports, substance by substance and component by component, because transparency builds trust. Read our PFAS testing results from 2024 and 2026.

The Climate Label is a trusted mark of corporate climate leadership. Companies that earn the Climate Label have been verified as meeting high standards for climate performance, transparency, and accountability. Products and services from certified brands are developed and delivered with a focus on reducing greenhouse gas emissions over time. They have long-term climate targets backed up by immediate funding and actions.

Years 1 - 10: Full coverage, Non-Prorated. Years 11 - 25: Limited Coverage, Prorated. To maintain structural integrity and ensure warranty coverage, the Extra Firm Mattress must be used on a properly designed support system. All Avocado foundations, bunkie boards, bed frames, and adjustable bases meet these requirements when used correctly and unaltered. If using a third-party bed frame, it must include a rigid center support beam with at least one leg extending to the floor for queen-size beds and larger. We strongly recommend pairing this mattress with a heavy-duty foundation designed for higher weight capacities to prevent sagging and extend the mattress's lifespan. Read Our Warranty.

Your 1-Year Sleep Trial begins after you receive your mattress and is limited to one mattress per household, with a minimum of 30 days. Read our refund policy terms & conditions. Shipping and in-home delivery & setup fees are non-refundable. Returned mattresses incur a $99 fee. The mattress box must be opened within 30 days of receipt. Read our new-owner Tip Series in our Help Center:

1. What to Expect.
2. How To Find the Right Feel.
3. How to Properly Support Your Mattress.
4. How to Stay Cool All Night.
5. How Pillows Support Your Spine.
6. How to Rotate for the Win.

A law label is a legally required tag describing the interior filling materials of a mattress. Few companies share it before purchase. We always have. Inside every Avocado Green Extra Firm Mattress: natural latex foam rubber, organic wool, coconut fiber pads, an individually wrapped coil spring unit, and a fabric cover of 97% organic cotton and 3% elastane, which gives the knit its stretch and recovery. Assembled in Fullerton, California, with domestic and imported materials. Not inside this mattress: polyurethane foam, adhesives between comfort layers, chemical flame retardants, or fiberglass. One note on the wording. Law labels use generic filling categories, not certification language — which is why ours reads "natural latex foam rubber" rather than naming the GOLS certification behind it. Same material, regulated vocabulary. Separately, we test finished mattresses for 679 PFAS substances through Intertek, an ISO/IEC 17025-accredited lab, at a 10 ppb detection limit. None have been detected. Read the law label for every Avocado product.