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King 12" Firm Hybrid Bed-In-A-Box Mattress and Better Head and Foot Adjustable Base

M628 Collection by Sierra Sleep
SKU: M62841+M9X842
$1,857.00- Come in for our lowest sale price!


Height (bottom to top): 12" H
See Construction and Specifications


The M628 King 12" Firm Hybrid Bed-In-A-Box Mattress and Better Head and Foot Adjustable Base, made by Sierra Sleep, is brought to you by Smart Buy Furniture. Smart Buy Furniture is a local furniture store, serving the Las Cruces, Deming, Alamagordo, Hatch, El Paso, White Sands, New Mexico area. Product availability may vary. Contact us for the most current availability on this product.
  • Innerspring
  • Adjustable
  • Hybrid
  • Pocketed Coil
  • Firm
  • Smooth Top
  • No Flip
  • Motion isolation
  • Adjustable base compatible
  • Pressure relief
  • Mattress in a box


Gel Memory Foam
Gel Memory Foam
Gel Memory Foam, like all Memory Foams, molds to your shape and provides support and pressure relief. Infusing Memory with Gel Beads advances the Memory Foam to give it more support and provides a cooler feel to the foam.
Without sacrificing quality or comfort, this mattress has been pressed, vacuum sealed, and rolled into a box so it can conveniently be brought right to your door. No maintenance or assembly required.


This item consists of:

Sku Item Qty Width Depth Height Price
M62841 King 12" Firm Hybrid Mattress 1 12" $927.00
M9X842 King 1pc Better Adjustable Base 1 $957.00


Item & Dimensions
Manufacturer Sierra Sleep
Mattress Size King
Height (bottom to top) 12" H
Mattress Type Hybrid
Mattress Type Pocketed Coil
Mattress Type Innerspring
Mattress Type Adjustable
Comfort Level Firm
Features No Flip
Features Motion isolation
Features Adjustable base compatible
Features Pressure relief
Features Mattress in a box
Comfort Layers 2" High-Density Gel Memory Foam Lumbar Support; 2" High-Density Cushion Firm Foam
Top Stretch Knit Cover
Coil Count Queen 680
Coils and Support 680 (Queen) 8" Individually Wrapped, Power Packed Coils; ¾" High-Density Base Foam
Warranty Three Year Non-Prorated Warranty
Sleep Health and Habits Guide
Sleep Health and Habits Guide
Adjustable Base Buying Guide
Reference #: M62841+M9X842
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King 12" Firm Hybrid Adjustable Base
King 12" Firm Hybrid Adjustable Base M628
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