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Perfect Sleeper® Cobalt Coast 12" Firm Mattress
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96% of customers were happy with their purchase.

Serta Perfect Sleeper® Cobalt Coast 12" Firm Mattress

139596P
To Check Availability

    Why Our Sleep Experts® Love It

    "Perfect personalized support and comfort! This mattress will respond perfectly to your body's unique shape."- Dennis Ottochian, Sleep Expert

    BEST FOR
    Back & Stomach Sleepers
    About Sleep Styles
    Helps With
    Acid Reflux icon
    Acid Reflux
    Pain icon
    Pain
    Sleep Apnea icon
    Sleep Apnea
    Snoring icon
    Snoring
    Temperature icon
    Temperature
    Toss And Turn icon
    Toss And Turn
    About Sleep Disruptors

    Overview

    Wake up invigorated after a restful sleep on your Serta® Perfect Sleeper® Cobalt Coast Firm 12" Mattress. A generous layer of PillowSoft™ Plush Foam invites sleepers in all positions to snuggle in, while PillowSoft Aire™ Medium Comfort Foam provides the plush feel with a touch of firmness from the springs to support spinal alignment.


    Serta's exclusive HexCloud™ Gel Medium Comfort Foam uses unique hexagon-shaped cutouts to relieve the pressure on your hips, shoulders and lower back. And hot sleepers will awaken dry and cool because of plant-derived CoolFeel™ Knit Fabric, a breathable phase change material that pulls heat away from the body.

    Benefits

    Pressure Relief icon image
    Pressure Relief
    Pressure relief can alleviate aches, stiffness, pain, and sleep apnea by keeping pressure on the mattress consistent across the entire bed.
    Pressure relief can alleviate aches, stiffness, pain, and sleep apnea by keeping pressure on the mattress consistent across the entire bed.
    Cooling Technology icon image
    Cooling Technology
    Temperature-regulating components and materials draw heat away from the body to create a cool and comfortable sleep surface.
    Temperature-regulating components and materials draw heat away from the body to create a cool and comfortable sleep surface.
    Support icon image
    Support
    Proper support from your mattress can alleviate common sleep problems from snoring to soreness to sleep apnea as it distributes your weight evenly across the mattress and maintains proper joint and spine alignment.
    Proper support from your mattress can alleviate common sleep problems from snoring to soreness to sleep apnea as it distributes your weight evenly across the mattress and maintains proper joint and spine alignment.
    Breathable icon image
    Breathable
    Breathable materials regulate body temperature and prevent heat buildup to create a cooler sleep experience.
    Breathable materials regulate body temperature and prevent heat buildup to create a cooler sleep experience.
    Adjustable Base Friendly icon image
    Adjustable Base Friendly
    Elevating the top and/or bottom of your mattress provides targeted support to help reduce snoring, provide pain relief and make reading and watching TV more comfortable.
    Elevating the top and/or bottom of your mattress provides targeted support to help reduce snoring, provide pain relief and make reading and watching TV more comfortable.
    Specifications

    Features

    • FIRM COMFORT
    • MATTRESS HEIGHT

    This mattress embraces your curves to relieve pressure, while a touch of firmness offers spine-aligning support for combination sleepers

    The plant-derived cover is cool to the touch, while an added layer of antimicrobial technology keeps your mattress fresh

    Wrapped coils add conforming support, while proprietary foam encasement technology eliminates the “roll-off” feeling

    Breakdown

    Quilting Layer
    CoolFeel™ Fabric
    Fiber Layer
    Comfort Layer
    Serta® PillowSoft® HD Foam
    PillowSoft® Aire
    HexCloud™ Gel Foam
    Support System
    825 Edition Custom Support Coil System
    Serta® Balanced Support Foam
    About serta
    Serta brand offers memory foam mattresses, hybrid mattresses, and innerspring mattresses at every price point, all designed to provide exceptional comfort. Serta mattresses include gel memory foam allowing for enhanced air flow and motion-isolating support. Specific Serta products even include such enhancements as premium pressure relief and advanced cooling technology, as well. Serta also offers a variety of bed accessories, including bed frames, baby and toddler furniture, and mattress toppers.
    Delivery & Shipping

    Free Delivery

    Includes transportation, mileage and tolls

    Home protection from outside direct and elements

    Delivery where you want - front door, side door or even garage

    Contactless delivery, meaning we won’t enter your home

    Regular $24.99

    NOW FREE

    Mattress Setup

    and Haul Away

    Includes all Free Delivery services plus:

    New mattress and box spring setup

    Removal of packaging material from purchased item(s) & removal of old mattress set (equal to the number of pieces purchased)

    Three maximum flight of stairs purchased items can be carried

    $99.99

    Mattress Setup and

    Haul Away / Adj Base

    Includes all Mattress Setup and Haul Away

    services plus:

    Five maximum flight of stairs purchased items can be carried

    Delivery and setup of up to three mattress sets

    Setup of adjustable bases purchased from Mattress Firm

    $149.99

    Warranty
    No content available