For screen reader problems with this website, please call204-727-54492 0 4 7 2 7 5 4 4 9Standard carrier rates apply to texts.

Custom Order

Sierra Sleep® By Ashley® Millennium Hybrid Luxury Plush California King Mattress in a Box

Model #: M50851
Sierra Sleep
At a Glance

When it comes to your comfort, discover the luxury of this hybrid plush mattress. A layer of cooling gel latex and two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes to the cooling performance, and a green tea-infused support foam base keeps your mattress fresh. Contouring comfort foam conforms to your body, delivering amazing support, pressure relief and comfort. In addition, the premium pressure-sensitive NanoCoil unit and individually wrapped coil pack help to provide a great night's sleep.

Visit Store For Details
$4,069.99Save $1,000.00

Custom order times vary and

cannot be guaranteed.

Get to know this product.

  • 2 layers of phase change material (PCM)
  • 2" copper-infused cooling memory foam; 3" sculpted body-contouring comfort foam
  • Green tea-infused support foam base
  • Premium pressure-sensitive NanoCoil unit; individually wrapped coil pack
  • 4-way stretch knit cover
  • Adjustable base compatible
  • Foundation/box spring sold separately
  • Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening

Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details

*Mattress only, all other products sold separately. Images may not reflect actual size.


Misc. Specs

Height (in.)15
Made InUSA
Mattress SizeCalifornia King
Width (in.)71
Weight Kilogram298
Length (in.)83
Double Sided MattressNo
Manufacturer Warranty10 Year
Age GroupAdult
Color Finish NameWhite
Mattress Comfort LevelPlush
Shipping Width (in.)15
Shipping Height (in.)80
Shipping Depth (in.)15
Height (cm)38
Width (cm)180
Length (cm)211
Shipping Width (cm)38
Shipping Height (cm)203
Shipping Depth (cm)38
Mattress ConstructionHybrid