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Innerspring mattresses help you sleep better. According to a study from the Kansas State University Institute of Environmental Research, they sleep 28% cooler and are 26% more durable than foam mattresses. They also provide a better edge than foam, eliminating that roll-off feeling while delivering a more consistent sleep surface and reducing motion transfer.

At Avocado, we use Leggett & Platt’s top-of-the-line Quantum Edge Elite Combi-Zone® innerspring support unit, which is made in the U.S. from recycled steel. Our unit includes 5 zones that are encased in fabric so they function independently, while offering a specific firmness, density, and spring action for exceptional comfort and durability. The 5 zones include: head, leg, torso, side edges, and top and bottom edges.

Here’s a Breakdown of Our 5-Zone Support System:

  1. Side Edge Zones: You can sleep securely even on the far edges of our mattress with coils that prevent any feeling that you may roll off the bed.
  2. Top + Bottom Edge Zones: Most mattress companies either have a reinforced side edge or reinforced top and bottom edges. We do both. That’s so we create a more consistent sleep surface. Plus, if you sit on the edge of a bed that isn’t reinforced — like any memory foam mattress — you’ll slump off the mattress.
  3. Torso Zone: Our torso zone has fewer coils made with a more narrow gauge than what we have in our leg and head zones. The area provides optimal, comforting support for your hips.
  4. Leg Zone: Your back, shoulders, neck, and knees need more support. That’s why our leg and head zones, which are interchangeable (in fact, we encourage you to regularly rotate your mattress for best results), have more coils and thicker coils.
  5. Head Zone: Like the leg zone, our head zone has thicker coils — and more of them. That’s because supportive, medium-firm mattresses are better for our spines. If a mattress sags, sinks, or lumps up, it no longer contours to your body and doesn’t provide the support your back needs. Together, the design of our torso, leg, and head zones will help maintain the natural s-curve of your spine.

And here’s our coil count for each zone for every mattress size.

TWIN: 756 support coils

  1. Side Edges: 188 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom Edges: 88 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 220 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 260 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 260 coils (14 gauge, 5 turn fabric encased coils)

TWIN XL: 772 support coils

  1. Side Edges: 200 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom Edges: 88 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 198 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 286 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 286 coils (14 gauge, 5 turn fabric encased coils)

FULL: 1016 support coils

  1. Side Edges: 188 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom Edges: 128 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 320 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 380 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 380 coils (14 gauge, 5 turn fabric encased coils)

QUEEN: 1,130 support coils

  1. Side Edges: 200 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom: 144 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 324 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 462 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 462 coils (14 gauge, 5 turn fabric encased coils)

KING: 1,414 support coils

  1. Side Edges: 200 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom: 184 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 414 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 616 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 616 coils (14 gauge, 5 turn fabric encased coils)

CALIFORNIA KING: 1,384 support coils

  1. Side Edges: 208 coils (16 gauge, 10 turn fabric encased coils)
  2. Top + Bottom: 176 coils (16 gauge, 10 turn fabric encased coils)
  3. Torso: 352 coils (17 gauge, 10 turn fabric encased coils)
  4. Leg: 648 coils (14 gauge, 5 turn fabric encased coils)
  5. Head: 648 coils (14 gauge, 5 turn fabric encased coils)

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

Learn More About What's Inside Our Mattresses.

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