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Custom Order

Sierra Sleep® by Ashley® Millennium Luxury Plush Gel Latex Hybrid King Mattress - Bed In a Box

Model #: M50841
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.

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$4,069.99Save $1,000.00

Custom order times vary and

cannot be guaranteed.

Get to know this product.

  • Comfort level: luxury cushion firm
  • 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
  • 10-year non-prorated warranty
  • Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details
  • Foundation/box spring sold separately
  • Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening
  • State recycling fee may apply
  • Made in USA

Ashley® Furniture is dedicated to empowering your design vision. Discover all the inclusive styles you desire, whether you're decking out your first apartment or designing your dream home. Starting from travel-inspired sketches and backed by 70 years of experience, each piece is expertly crafted for years of enjoyment. At Ashley® Furniture, the work put into quality construction, unique stylings, and exceptional comfort matches the integrity of your home and family. From living rooms to patios, you’ll find exactly what you need for your space with Ashley® Furniture.

*Foundation/box spring available, sold separately. Image may not depict the real size of the bed. Please contact the store/manufacturer for more details.


Misc. Specs

Product Weight (lbs.)135
Height (in.)15
Made InUSA
Mattress SizeKing
Width (in.)75
Length (in.)79
Double Sided MattressNo
Manufacturer Warranty10 Years
Age GroupAdult
Color Finish NameWhite
Mattress Comfort LevelPlush
Shipping Width (in.)15
Shipping Height (in.)80
Shipping Depth (in.)15
CollectionMillennium Luxury
Height (cm)38
Width (cm)190.5
Product Weight (kg)61
Length (cm)201
Shipping Width (cm)38
Shipping Height (cm)203
Shipping Depth (cm)38
Mattress ConstructionHybrid