Coil Count and Innerspring Specifications for Every Avocado Mattress

Coil count is the spec shoppers ask about most, so this guide lists the exact count for every Avocado mattress and size. It's worth knowing up front that coil count is only one part of how an innerspring performs. Wire gauge, coil height, how the coils are zoned, and the quality of the fabric encasement matter as much or more. A well-engineered unit with fewer coils can perform better than a higher count in a poorly designed one. The counts below are most useful compared within a single model, where they reflect real differences in the coil system, rather than across different models or brands, where design differences make a raw count misleading.

Every Avocado innerspring mattress uses individually wrapped coils — each encased in food-grade, non-toxic polypropylene fabric — so they move independently rather than in a connected grid. This means the mattress responds to your body rather than the whole surface shifting when you or your partner moves.

Most Avocado mattresses use a single coil unit, which we manufacture ourselves in Tecate. Some models use two coil layers — a thinner comfort layer and a deeper support base — explained in the sections below.

Base Coil Unit (8 inches): The primary support system in every innerspring mattress. Taller coils with more travel, designed for spinal alignment, pressure distribution, and long-term durability. Present in every Avocado hybrid model.

Micro-Coil Comfort Layer (1 inch): A second, shallower layer of individually wrapped springs used in the Luxury Organic Pillow-Top and Box-Top. Positioned above the base unit, these smaller coils add a responsive, body-contouring feel and improve motion isolation between sleep partners. The Wool Mattress also uses a 1-inch micro-coil layer as its top comfort layer.

Here's the full section with the list fixed to four types. I restored the fourth bullet, updated the intro line to "four coil types across three wire gauges," and dropped the standalone "softer shoulder coils" sentence, since the fourth bullet and the closing paragraph now both cover that point and keeping it made three.

Most Avocado base-coil units are arranged into seven ergonomic zones, and the design is patented (U.S. Patent No. 11,627,813, invented by Avocado CEO Vy Nguyen). Four are perimeter zones — left, right, head, and foot — reinforced with firmer border coils on all four sides, so edge support remains consistent around the entire mattress, including the head and foot, where the structure tends to compress and degrade first. The other three are interior comfort zones: head/shoulder, hip/torso, and leg.

The interior zones vary firmness by body region through coil construction, not gauge alone. The hip and lumbar zone uses the firmest coils, 14-gauge (0.080"), to resist sagging and keep the spine level, with 0.071-inch transition rows around it so the change in firmness is gradual rather than abrupt. The shoulder and leg zones use softer coils that allow more sink for pressure relief. Because the head and foot zones are identical, the mattress is designed to be rotated regularly, which extends the life of the comfort zones evenly. To read more about the patent, see Is Avocado's Coil System Patented?

This coil unit is used in the Green Medium, Plush, and Ultra Plush, the Luxury, and the Vegan mattresses. It uses four coil types across three wire gauges:

That is four coil types but only three gauges, because the 16-gauge wire is built two different ways — firm for the border, soft for comfort. Firmness comes from how each coil is built (its gauge, height, and number of turns), not from wire thickness alone, which is why the firmer border coils and the softer comfort coils can share the same 16-gauge wire.

Four reinforced perimeter zones, including head and foot, plus three interior zones with firmness varied by body region. Many zoned coil systems reinforce only the two long sides; Avocado reinforces all four:

(8-inch, 7-zone base unit)

(8-inch base unit)

(Two 3-inch coil units — combined count)

The Extra Firm Organic Mattress uses two 3-inch pocketed coil units (our model Micro 3.0) stacked one on top of the other, separated by organic coconut fiber pads infused with GOLS organic latex, as shown below. Both units are built with a single wire gauge:

Unlike the multi-gauge, zoned units in the Green and Luxury mattresses, the Extra Firm uses no softer comfort or transition coils. Both stacked units are uniformly firm, which is what produces its dedicated support feel.

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(8-inch, 7-zone base unit)

(1-inch micro-coil comfort layer + 8-inch, 7-zone base unit)

The wool mattress uses the same patented 7-zone base unit as the Green Mattress, plus a 1-inch micro-coil unit (model Micro 1.0) in the top comfort layer. The micro-coil construction is:

The Eco Organic Mattress uses a single 8-inch pocketed coil unit (our model 789) built with two wire gauges:

This is a simpler architecture than the multi-gauge units in the Green and Luxury mattresses, delivering the same individually wrapped, motion-isolating support at a more accessible price.

The Eco Organic Kids Mattress uses a single 6-inch pocketed coil unit (our model 660 unit) built with one wire gauge:

The coils are 6 inches tall, shorter than the 8-inch units in the adult mattresses, which keeps the overall profile right for a kids' bed. Every coil is individually wrapped in the same food-grade, non-toxic polypropylene as the adult models. This mattress is only available in Twin, Twin XL, and Full sizes.

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Individually wrapped coils — also called pocketed coils — are steel springs that are each encased in their own fabric pocket rather than connected to neighboring coils in a grid. In a traditional interconnected coil system, movement in one part of the mattress spreads across the entire surface. Individually wrapped coils move independently, so each one responds only to the pressure directly above it. The result is more precise contouring to your body shape, significantly less motion transfer between sleep partners, and a sleep surface that doesn't shift when one person moves.

Bonnell springs are the oldest and most common coil design in mattresses — hourglass-shaped steel springs connected to each other by a continuous wire frame. Because they're linked, movement anywhere on the mattress travels across the entire surface. They're inexpensive to manufacture, which is why they're still widely used, including in some mattresses that are otherwise positioned as premium.

Individually wrapped coils are each encased in their own fabric pocket and not connected to neighboring coils. They move independently, so pressure in one area doesn't transfer to another. This produces better motion isolation, more precise body contouring, and a sleep surface that responds to you rather than to the whole bed.

Some mattresses combine both systems — a Bonnell unit for base support and a pocketed coil layer above it for comfort. The Bonnell unit still governs the base's motion-transfer characteristics, which limit what the pocketed comfort layer can offset.

Every Avocado innerspring mattress uses individually wrapped coils exclusively — no Bonnell units at any layer.

Unlike solid foam, which blocks air movement entirely, individually wrapped coil units are mostly open space. Air moves freely between and around each encased spring throughout the night, preventing the heat buildup that foam mattresses are known for. Combined with organic wool — which actively wicks moisture — and organic latex, which has an open-cell structure that breathes naturally, Avocado mattresses cool through material design rather than gimmicks like blue gel layers or chemical cooling treatments.

Not necessarily — though more coils do cost more to produce. Coil count is one factor in performance, but wire gauge, coil height, encasement quality, and zone architecture matter at least as much. A high coil count in a poorly zoned design performs worse than a lower count in a well-engineered one.

Where coil count genuinely matters: a second micro-coil comfort layer, as used in the Luxury Pillow-Top, Luxury Box-Top, and Wool Mattress, adds body contouring and motion isolation because smaller, more numerous coils respond to finer differences in body shape. That's a meaningful upgrade. But comparing total counts across different models or brands as a simple quality ranking doesn't hold up — the Avocado Firm uses a newer coil design with fewer but differently engineered coils than the Medium, and it performs better for its intended purpose.

Wire gauge measures the thickness of the steel in each coil — a lower number means thicker wire, which generally makes a firmer coil. But gauge is only part of the story: a coil's height and number of turns matter just as much, so two coils of the same gauge can feel different. Avocado's firmer perimeter border coils and softer shoulder coils, for example, use the same 16-gauge wire. Avocado varies coil construction by zone — firmest through the hip and lumbar (14-gauge) for support, softer through the shoulders for pressure relief, with firmer border coils on all four sides. The specific configuration differs by model.

Most mattress brands — including many marketed as premium — use unzoned coil units, where every spring is identical regardless of where it sits in the mattress. A small number of brands use zoned systems, and of those, most reinforce only the two long sides. Avocado reinforces all four sides: left, right, head, and foot. That produces seven zones and means edge support runs consistently around the entire perimeter — not just where you're most likely to roll off, but also at the head and foot where the mattress structure is most likely to compress and degrade over time.

The practical difference: the head and foot of the mattress retain their shape and firmness over time; the sleep surface stays consistent from edge to edge; and rotating the mattress — which Avocado recommends regularly — evenly extends the life of the interior zones because the head and foot coil zones are identical.

A base coil unit is the primary support system in an innerspring mattress — typically 8 inches tall in Avocado models, engineered for spinal alignment, durability, and load-bearing support. A micro-coil layer is a second, much shallower unit — 1.5 inches tall in Avocado's case — positioned above the base unit in the comfort zone. Because the coils are smaller and more numerous, they respond to finer body contours and improve motion isolation between sleep partners. Think of the base unit as structural and the micro-coil layer as responsive. The Luxury Pillow-Top, Luxury Box-Top, and Wool Mattress all use both layers.

The fabric encasement is what allows each coil to move independently, physically separating each spring from its neighbors. Avocado uses food-grade, non-woven polypropylene for the encasement. It is used rather than a natural fiber because it withstands the constant friction of thousands of coils compressing and releasing over years of use. An organic cotton encasement would wear down faster under that repeated movement, which is why almost all certified organic mattresses use a nonwoven fabric.

Polypropylene is a synthetic and is not organic on its own. Under the Global Organic Textile Standard (GOTS), it is permitted as a functional accessory: a non-organic component allowed within a certified organic product where no organic material meets the structural need. The finished mattress still holds GOTS certification alongside OEKO-TEX® Standard 100 Class I, EWG Verified®, MADE SAFE®, GREENGUARD Gold, and UL® Formaldehyde-Free, the full six-standard finished-product stack, coils and encasement included.

No. Every Avocado innerspring uses individually wrapped coils, but the architecture varies by model. The Green, Luxury, and Wool mattresses use a multi-gauge base unit with reinforced coils on all four sides and firmness varied by body zone. The Eco Organic Mattress uses a two-gauge unit with reinforced perimeter coils along both long edges. The Eco Organic Kids Mattress uses a single-gauge unit built for uniform support at a lower profile. Coil count, height, and gauge differ by model, which is why counts are best compared within a model rather than across them.

The Kids mattress uses a 6-inch coil unit rather than the 8-inch unit in the adult mattresses. The lower profile suits children's bed frames, bunks, and trundles, where a tall mattress can sit too high for safe use. The coils are individually wrapped in the same food-grade, non-toxic polypropylene as every other Avocado model.