{"product_id":"avocado-extra-firm-10-king-mattress","title":"Avocado | Extra Firm | 10\" King Mattress","description":"\u003cp\u003e\u003cstrong\u003eGently-Used:\u003c\/strong\u003e This mattress has little to no wear and tear, and been cleaned and sanitized, ad will be great for many years to come. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: \u003c\/strong\u003e\u003cem\u003eThis mattress has a small blemish that we were not able to remove through the cleaning and sanitation process. \u003c\/em\u003e\u003c\/p\u003e\n\u003ch1 class=\"pdp-product-title\"\u003eExtra Firm Mattress\u003cspan\u003e:\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cdiv\u003e  The Only Heavy-Duty Mattress Certified Organic\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eThe Avocado Green \u003c\/span\u003e\u003cstrong\u003eExtra Firm Mattress\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esupports up to 550 lbs per person\u003c\/strong\u003e\u003cspan\u003e, or \u003c\/span\u003e\u003cstrong\u003e1,100 lbs total\u003c\/strong\u003e\u003cspan\u003e — our \u003c\/span\u003e\u003cstrong\u003ehighest-capacity mattress and the only heavy-duty mattress certified organic to GOTS\u003c\/strong\u003e\u003cspan\u003e. Two full coil units, not one: 1,600 individually wrapped coils in Queen and up to \u003c\/span\u003e\u003cstrong\u003e2,112 in King\u003c\/strong\u003e\u003cspan\u003e, all \u003c\/span\u003e\u003cstrong\u003e14-gauge double-tempered recycled steel\u003c\/strong\u003e\u003cspan\u003e, separated by a coconut fiber pad infused with organic latex. Uniform heavy gauge throughout both units means the perimeter is as firm as the center — no soft edges, no sinkage. Built for heavy sleepers, big and tall sleepers, athletes, and back and stomach sleepers who need spinal alignment under load.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"row-heading text-align-center\"\u003eTHE FIRMEST MATTRESS WE MAKE\u003c\/h2\u003e\n\u003cp class=\"text-align-center\" dir=\"ltr\"\u003e\u003cstrong\u003eNo sink, no bounce, no soft spots\u003c\/strong\u003e: a flat, stable surface that stays consistent from edge to edge and from head to foot. That comes from two full coil units of 14-gauge double-tempered recycled steel, the heaviest gauge we use, held apart by a dense coconut fiber pad. No adhesives bind the layers together — they're held by hand needle-tufting with organic wool rosettes, so there are no glue seams between layers to break down or harden over time. One honest note on feel: heavier sleepers will register slightly more give than lighter ones, simply because more weight compresses more coil. It stays\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edefinitively firm\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat either end of that range. Best for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eback and stomach sleepers\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewho need alignment under load,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eathletes\u003c\/strong\u003e, and anyone who has found every\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eother mattress too soft\u003c\/strong\u003e. Strict side sleepers will likely find it too firm — add an Organic Latex Mattress Topper, or step down to the Avocado Green\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.avocadogreenmattress.com\/products\/green-natural-organic-mattress?variant=46273418166422\" title=\"Avocado Green Firm Mattress\"\u003eFirm Mattress\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eBUILT FOR HEAVY SLEEPERS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 550 lbs per person, or 1,100 lbs total\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— our highest capacity by a wide margin.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTwo full coil units\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof double-tempered recycled steel, wound in our own facility rather than bought from a supplier, which is why both units run uniform 14-gauge instead of whatever a catalog offers. Every spring sits in its own pocket, in both layers — no helical wire threading the coils together, no interconnected grid anywhere in the mattress. Uniform gauge throughout means the perimeter is as firm as the center, with no soft edges. Pair it with our\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.avocadogreenmattress.com\/collections\/mattresses\/products\/organic-mattress-foundation?variant=45216895598742\" title=\"Heavy Duty Foundation\"\u003eHeavy Duty Foundation\u003c\/a\u003e\u003c\/strong\u003e, rated to 2,000 lbs of total load.\u003c\/p\u003e\n\u003ch2\u003eFIRMLY ORGANIC\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eonly extra firm, heavy-duty mattress certified organic to GOTS\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat the finished-product level — not just organic materials, but a finished mattress audited from farm to factory. Organic Dunlop latex certified to GOLS, plus organic wool and cotton. Verified against five independent nontoxic standards: OEKO-TEX STANDARD 100 Class I, EWG Verified®, MADE SAFE®, and GREENGUARD Gold and UL® Formaldehyde-Free Claim Verified\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCERTIFIED ORGANIC MATERIALS\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"center strong uppercase\"\u003eCERTIFIED ORGANIC LATEX\u003c\/p\u003e\n\u003cp class=\"center\"\u003eOrganic Dunlop latex, certified to GOLS for organic content and FSC® for responsible sourcing, from co-owned farmer societies in India and Guatemala. In the Extra Firm we use two inches of soft D65 — enough give at the surface that you aren't lying on steel, over a support core that doesn't move.\u003c\/p\u003e\n\u003cp class=\"center strong uppercase\"\u003eCERTIFIED ORGANIC WOOL\u003c\/p\u003e\n\u003cp class=\"center\"\u003eOrganic wool, certified to the Responsible Wool Standard, at one ounce per square foot. It wicks moisture, resists odor, and passes flammability standards on its own — no chemical flame retardants.\u003c\/p\u003e\n\u003cp class=\"center strong uppercase\"\u003eCERTIFIED ORGANIC COTTON\u003c\/p\u003e\n\u003cp class=\"center\"\u003eA breathable organic cotton cover, hand needle-tufted with wool yarn rosettes. Part of the GOTS-certified finished mattress, audited from farm to factory. Grown without synthetic pesticides or defoliants.\u003c\/p\u003e\n\u003ch2\u003eEXTRA COOL\u003c\/h2\u003e\n\u003cp\u003eHeat gets trapped when you sink into a mattress: polyurethane foam wraps around you and holds warmth against your body. This one\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edoesn't let you sink.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou sleep on the surface, with air moving through it.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNo polyurethane foam\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof any kind. No phase-change coatings that wear off after a year. Instead: perforated organic Dunlop latex ventilated with hundreds of airflow channels, an organic coconut fiber pad infused with organic latex, organic wool that wicks moisture away from your skin, and an innerspring core that breathes by design. Cooling comes from the build, not a treatment.\u003c\/p\u003e\n\u003ch2\u003eLOWER PROFILE \u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003eMost mattresses marketed to heavier sleepers look thick. Almost all of that height is polyurethane foam stacked in layers, and foam is the part that compresses, softens, and leaves body impressions. The Extra Firm is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10 inches\u003c\/strong\u003e, and nearly all of it is load-bearing: two full coil units of 14-gauge steel, a dense coconut fiber pad, and firm D65 latex. Nothing in the stack is there to add height for no reason. That's how\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eit supports 550 lbs per person while sitting four inches lower than mattresses rated for half the weight.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIt also fits standard sheets and works on platform beds without the stepladder effect — a practical advantage, not just a visual one.\u003c\/p\u003e\n\u003ch2\u003eSTRONG SUPPORT\u003c\/h2\u003e\n\u003cp\u003eQueen and larger Extra Firm mattresses need a rigid center support beam with at least one leg to the floor, and slats no more than 5 inches apart. Our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.avocadogreenmattress.com\/collections\/mattresses\/products\/green-mattress-foundation-with-legs?variant=45216902512790\" title=\"Heavy Duty Foundation with Legs\"\u003e\u003cstrong\u003eHeavy Duty Foundation\u003c\/strong\u003e\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eclears both: slats 2.5 inches wide spaced just 2 inches apart, and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2,000 lb total load rating\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— matched to this mattress the way our Standard Foundation is matched to the rest of the line. Available in 3.5-inch low profile and 7.25-inch standard heights, with or without legs.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Avocado","offers":[{"title":"King","offer_id":50588131688641,"sku":"01-090926-04","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/9349\/4209\/files\/20260909_115338_5e480808-0f8b-41c8-93eb-7b7ec96df11f.jpg?v=1789147889","url":"https:\/\/handupmattress.com\/products\/avocado-extra-firm-10-king-mattress","provider":"HandUp Mattress ","version":"1.0","type":"link"}