Innerspring mattresses sleep up to 28% cooler and 26% more durable than foam mattresses, according to research conducted by Kansas State University and the Institute of Environmental Research. They also provide a better edge than foam, reducing or eliminating that roll-off feeling, and deliver a more consistent sleep surface.

At Avocado, our support unit is made in the US from recycled steel by Leggett & Platt. This is a top-of-the-line Quantum® Edge Combi-Zone® unit.

Inside, every innerspring coil is completely encased in fabric so they function independently and offer superior response. They are also set in three strategically positioned comfort zones for optimal support to the hips, back and shoulders. Additionally, a fourth zone is added to reinforce the perimeter of the mattress. Together, these zones offer a distinct difference in firmness, density, and spring action for exceptional comfort and durability. They also feature a high coil count that delivers an even surface, keeping sleepers from rolling together at night and reducing motion transfer.

Support Coil Counts, Plus Coil Count Per Zone:

Twin: 756 support coils
— Perimeter, Top + Bottom: 88 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 188 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 260 coils (14 gauge, 5 turn fabric encased coils)
— Center: 220 coils (17 gauge, 10 turn fabric encased coils)

Twin XL: 772 support coils
— Perimeter, Top + Bottom: 88 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 200 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 286 coils (14 gauge, 5 turn fabric encased coils)
— Center: 198 coils (17 gauge, 10 turn fabric encased coils)

Full: 1016 support coils
— Perimeter, Top + Bottom: 128 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 188 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 380 coils (14 gauge, 5 turn fabric encased coils)
— Center: 320 coils (17 gauge, 10 turn fabric encased coils)

Queen: 1,130 support coils
— Perimeter, Top + Bottom: 144 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 200 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 462 coils (14 gauge, 5 turn fabric encased coils)
— Center: 324 coils (17 gauge, 10 turn fabric encased coils)

King: 1,414 support coils
— Perimeter, Top + Bottom: 184 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 200 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 616 coils (14 gauge, 5 turn fabric encased coils)
— Center: 414 coils (17 gauge, 10 turn fabric encased coils)

Cal. King: 1,384 support coils
— Perimeter, Top + Bottom: 176 coils (16 gauge, 10 turn fabric encased coils)
— Perimeter, Sides: 208 coils (16 gauge, 10 turn fabric encased coils)
— Head + Foot: 648 coils (14 gauge, 5 turn fabric encased coils)
— Center: 352 coils (17 gauge, 10 turn fabric encased coils)

Note: A higher gauge value indicates a more narrow wire.

Zone Map:

More on Leggett & Platt:

You can learn more about the coil support system by watching this video from the coil manufacturer, Leggett & Platt:

Note: To learn about Leggett & Platt's environmental initiatives, go here.

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