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Mattresses keyboard_arrow_right Mattress and Box Spring Sets keyboard_arrow_right Sierra Sleep M667 Loft and Madison Firm King Hyrbid Low Profile Set

King Luxury Firm Hyrbid Mattress and 5" Low Profile Solid Wood Foundation

SKU: M66741+2xM87X42

*Due to COVID-19 and the recent Texas storms that created a domestic foam shortage, we are experiencing a major disruption in our manufacturer supply chain. Due to this, Ruby-Gordon cannot guarantee delivery by specific timeframes. Please understand that we are doing our best to keep our delivery lead times as up to date as possible.

MSRP $3,989.00 reg. $2,148.00 Final Sale Price $1,826.00
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Height (bottom to top): 16" H
See Construction and Specifications


Mattress can be used on an adjustable base.
The M667 Loft and Madison Firm King Luxury Firm Hyrbid Mattress and 5" Low Profile Solid Wood Foundation, made by Sierra Sleep, is brought to you by Ruby Gordon Home. Ruby Gordon Home is a local furniture store, serving the Rochester, Henrietta, Greece, Monroe County, New York area. Product availability may vary. Contact us for the most current availability on this product.
  • Hybrid
  • Firm
  • Tight Top
  • No Flip
  • Motion isolation
  • Adjustable base compatible
  • Pressure relief


Power Packed Wrapped Coil Unit
Individually wrapped coils provide custom support for every person. Each coil works independently to provide support were you need it most and doesn't let your movement interrupt your partner's sleep.
Talalay Latex
Talalay Latex
Talalay Latex is the best available mattress foam for softness and durability. Latex has a unique feel with a soft push back, for a floating feeling.
Ashley Edge
A firm edge is achieved by using 13 gauge steel coils, individually wrapped and placed around the perimeter of the mattress. This gives you full use of the mattress surface and a firmer seating edge.


This item consists of:

Sku Item Qty Width Depth Height
M66751 California King Luxury Firm Hyrbid Mattress 1 16"
M87X42 King 5" Low Profile Solid Wood Foundation (need 2) 2 5"


Item & Dimensions
Manufacturer Sierra Sleep
Mattress Size King
Height (bottom to top) 16" H
Mattress Type Hybrid
Comfort Level Firm
Features No Flip
Features Motion isolation
Features Adjustable base compatible
Features Pressure relief
Low Profile Box Spring Yes
Comfort Layers 1.5" Nano Coil System; 2" High-Density Memory Foam; 2" Five-Zone High-Density Poly Foam
Top 1.5" High-Density Quilt Foam
Coil Count 720 (Queen) Pocketed Coils; 1872 (Queen) Nano Coils
Coils and Support 8" Pocketed Coils System; 1" High-Density Base Foam
Edge Support Ashley Edge Support
Warranty 10-Year Limited Warranty
Origin Made In the USA
Sleep Health and Habits Guide
Sleep Health and Habits Guide
Adjustable Base Buying Guide
Reference #: M66741+2xM87X42
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King Hyrbid Low Profile Set
Sierra Sleep M667 Loft and Madison Firm King Hyrbid Low Profile Set