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    This holiday season, we’re taking time to be with those who matter most. Colder’s stores will be closed on 12/24 & 12/25 so our team can celebrate with family and friends.

    Sierra Sleep® by Ashley Millennium 2.0 Foam 12" Firm Pillow Top Queen Mattress

    Sierra Sleep

    Model #:

    M31131

    At a Glance

    Discover the luxury of this memory foam queen mattress. Temperature-regulating material in the stretch knit cover keeps you at a comfortable temperature all night long. Gel memory foam and high-density support foam conform to your body, delivering pressure relief and comfort. And a green tea-infused support foam base provides enhanced stability.Read More

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    Mattress Comfort Level:Firm

    Firm---Plush---

    Mattress Construction:Foam

    FoamHybrid

    Mattress Size:Queen

    KingCalifornia KingQueenTwin XL

    Mattress Top:Pillow Top

    Euro TopPillow Top
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    Product Overview

    Product Overview

    Comfort Level: Firm

    Dual cooling action with phase changing material (PCM)

    High-density gel memory foam for lumbar support

    High-density body contouring support foam

    Green tea-infused base foam for added stability

    Hyper cool luxury 4-way stretch knit cover for uniform comfort and durability

    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

    State recycling fee may apply

    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 depict actual size.

    Useful Documents
    Warranty
    Specifications

    General Specs

    Height (in.)12
    Mattress SizeQueen
    Width (in.)60
    Weight Kilogram32.66
    Made In The USAYes
    Collection CodeM311
    Color/Finish NameBlack
    Adjustable Base CompatibleYes
    Length (in.)79.5
    ColorBlack
    Manufacturer Warranty10 Year Non-Prorated
    Mattress Comfort LevelFirm
    Shipping Depth (in.)15
    Shipping Width (in.)15
    Shipping Height (in.)67
    CollectionMillennium
    Height (cm.)30.48
    Width (cm)152.4
    Length (cm)201.93
    Shipping Depth (cm)38.1
    Shipping Height (cm)170.18
    Shipping Width (cm)38.1
    Mattress TopPillow Top
    Mattress ConstructionFoam