Size: Queen  • Comfort level: Luxury plush
Construction: Hybrid with gel latex, memory foam and dual coil systems
Cooling: 2 layers of phase-change material (PCM) and cooling gel latex
Memory foam: 2" copper-infused cooling memory foam
Contouring layer: 3" sculpted body-contouring comfort foam
Support: Pressure-sensitive NanoCoil unit and individually wrapped coil pack
Cover: 4-way stretch knit fabric
Compatibility: Adjustable-base compatible
Foundation/box spring: Sold separately
Setup: Ships compressed in a box; allow up to 48 hours for expansion
Warranty: 10-year non-prorated manufacturer warranty
Origin: Made in USA
Why choose the Ashley Sleep Millennium Luxury Plush Gel Latex Hybrid Queen Mattress M50831?
The Ashley Millennium Luxury Plush M50831 combines several distinct comfort and support technologies for shoppers seeking a cushioned mattress with temperature-management features. Cooling gel latex and two layers of phase-change material are designed to help manage heat, while 2 inches of copper-infused memory foam and 3 inches of sculpted comfort foam provide body-contouring cushioning. Beneath these layers, a pressure-sensitive NanoCoil unit works alongside individually wrapped support coils, providing another level of responsiveness rather than relying on foam alone. Ashley rates the mattress luxury plush, although individual sleepers may experience its firmness differently. Its 15-inch profile creates a substantial sleeping surface, and adjustable-base compatibility allows more flexibility in bed setup. The Millennium Luxury Plush is also offered in Twin XL and California King sizes; confirm the size-specific SKU before ordering.
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
Availabilityâ–¶
Available Configurations
SKU M50831 — Queen Dimensions: 79.5''W x 60''D x 15''H | Weight: 98.0 lbs▶
This option is a Queen Mattress.
SKU M50871 — Twin XL Dimensions: 79.5''W x 38''D x 15''H | Weight: 75.0 lbs▶
This option is a Twin XL Mattress.
SKU M50851 — California King Dimensions: 83.5''W x 72''D x 15''H | Weight: 128.0 lbs▶
This option is a California King Mattress.
How do the cooling gel latex, copper memory foam and PCM layers work in the Ashley Millennium M50831?
The Ashley Millennium Luxury Plush M50831 combines cooling gel latex, two phase-change material (PCM) layers and 2 inches of copper-infused memory foam. PCM is designed to absorb and release heat as temperatures change, while the foam layers provide different cushioning responses. Gel latex contributes a more responsive feel, whereas memory foam contours more closely to the body. Understanding how latex and memory foam differ in responsiveness, airflow and heat retention helps explain why Ashley combines these materials. The cooling features are designed to manage temperature, but actual comfort depends on bedding, room conditions and individual preferences.
What is the difference between the NanoCoil system and wrapped coils in the Ashley Millennium Luxury Plush Queen M50831?
The M50831 uses two distinct coil systems: a pressure-sensitive NanoCoil unit and an individually wrapped support-coil pack. The NanoCoils provide an additional responsive layer closer to the comfort foams, while the larger wrapped coils supply underlying support. This combination is intended to provide cushioning with spring responsiveness rather than the feel of an all-foam mattress. The independently wrapped coils may also reduce how much movement reaches a sleeping partner, although motion cannot be eliminated entirely. Because partner movement can travel through mattress layers and the supporting bed frame, a stable foundation remains important when sharing a Queen bed.
Is the 15-inch Ashley Millennium M50831 compatible with adjustable beds, and how high will the mattress sit?
Yes. Ashley lists the Millennium Luxury Plush M50831 as adjustable-base compatible. The Queen mattress measures 15 inches thick, so placing it on a support surface 12 inches above the floor produces an approximate mattress-top height of 27 inches before compression. Its taller profile also calls for Queen fitted sheets with sufficient pocket depth, especially when using a mattress protector. The choice between an adjustable foundation and a traditional stationary bed affects sleeping positions, finished height and support requirements. The foundation is sold separately, and compatibility should meet Ashley's warranty conditions. The mattress arrives compressed in a box and requires up to 48 hours for full expansion after opening.
Looking for the Ashley Sleep Millennium Luxury Plush Gel Latex Hybrid Queen Mattress M50831? VBU Furniture offers local pickup, Chicago and Illinois delivery, and nationwide shipping across the contiguous 48 states. Contact us to confirm availability and discuss delivery or setup options.
