Menu

Black® K-Class 15.75" Firm Pillow Top Mattress

Black® K-Class 15.75" Firm Pillow Top Mattress

Black® K-Class 15.75" Firm Pillow Top Mattress

Black® K-Class 15.75" Firm Pillow Top Mattress

Black® K-Class 15.75" Firm Pillow Top Mattress

Beautyrest Black® K-Class 15.75" Firm Pillow Top Mattress

143812P

To Check Availability

BEST FOR

Back & Stomach Sleepers

About Sleep Styles

Helps With

Acid Reflux icon

Acid Reflux

Bed Partner icon

Bed Partner

Pain

Sleep Apnea icon

Sleep Apnea

Snoring

Temperature icon

Temperature

Toss And Turn icon

Toss And Turn

About Sleep Disruptors

Overview

Elevate your sleep to a luxurious reward night after night. As the premier offering in our most advanced collection yet, Beautyrest Black® K-Class now offers up to 21% more support where your body needs it the most.* With help from our new plant-based cooling technology, the collection provides up to 18% more cooling power to keep you comfortable as you fall asleep and all night long.** In addition to our support and cooling systems, Beautyrest Black® K-Class includes comfort, pressure-relieving and support upgrades as well as 10X more memory foam*** compared to Beautyrest Black® L-Class and C-Class models for our most comfortable mattress ever. A luxurious layer made with silk, alpaca and cashmere provides unmatched comfort and breathability while Self-Response™ Latex ensures individualized support for different parts of your body. Lasty, 2000 micro-coils add an additional layer to our Premier Support System and provide precise conformability. These innovative features are paired with an all-new modern design to create a first-class sleep experience that will leave you feeling invigorated to take on your day.

*in the center-third of mattress, exact percentage varies by model
**vs. Harmony Lux Collection for the first 20 minutes
***by weight

Price
Deliver By
Comfort
Best For
Mattress Type
Height

Cooling Technology
Craftsmanship
Durability
Motion Separation
Pressure Relief
Support
Adjustable Base Friendly
Breathable

Black® K-Class 15.75" Firm Pillow Top Mattress

Beautyrest Black® K-Class 15.75" Firm Pillow Top Mattress

Comfort

Firm

Best For

Back and Stomach Sleepers

Mattress Type

Innerspring

Height

15.75"

Mattributes

Cooling Technology

Craftsmanship

Durability

Motion Separation

Pressure Relief

Support

Adjustable Base Friendly

YES

Breathable

YES

Shop Now

Black® C-Class 16" Plush Pillow Top Mattress

Beautyrest Black® C-Class 16" Plush Pillow Top Mattress

Comfort

Plush

Best For

Side Sleepers

Mattress Type

Innerspring

Height

16"

Mattributes

Cooling Technology

Craftsmanship

Durability

Motion Separation

Pressure Relief

Support

Adjustable Base Friendly

YES

Breathable

YES

Black® C-Class 13.75" Medium Mattress

Beautyrest Black® C-Class 13.75" Medium Mattress

Comfort

Medium

Best For

Side, Stomach and Back Sleepers

Mattress Type

Innerspring

Height

13.75"

Mattributes

Cooling Technology

Craftsmanship

Durability

Motion Separation

Pressure Relief

Support

Adjustable Base Friendly

YES

Breathable

YES

Black® C-Class 14.25" Medium Pillow Top Mattress

Beautyrest Black® C-Class 14.25" Medium Pillow Top Mattress

Comfort

Medium

Best For

Side, Stomach and Back Sleepers

Mattress Type

Innerspring

Height

14.25"

Mattributes

Cooling Technology

Craftsmanship

Durability

Motion Separation

Pressure Relief

Support

Adjustable Base Friendly

YES

Breathable

YES

Black® C-Class 14.5" Plush Mattress

Beautyrest Black® C-Class 14.5" Plush Mattress

Comfort

Plush

Best For

Side Sleepers

Mattress Type

Innerspring

Height

14.5"

Mattributes

Cooling Technology

Craftsmanship

Durability

Motion Separation

Pressure Relief

Support

Adjustable Base Friendly

YES

Breathable

YES

Need help deciding? Talk to a Sleep Expert^®

Our Sleep Experts^® are available in-store, online or by phone or chat to help find your perfect mattress.

Benefits

Pressure Relief icon image

Pressure Relief

9/10 Excellent

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

8/10 Good

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.

Motion Separation icon image

Motion Separation

9/10 Excellent

The goal of motion separation is to isolate movement, helping to reduce what you feel (like your partner tossing and turning) and offer pressure relief to your shoulders, hips, and back.

The goal of motion separation is to isolate movement, helping to reduce what you feel (like your partner tossing and turning) and offer pressure relief to your shoulders, hips, and back.

Support icon image

Support

8/10 Good

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

{"iconFeatures":[{"url":"https://images-us-prod.cms.commerce.dynamics.com/cms/api/cncgmclkfv/imageFileData/MAfErv?pubver=1","text":"FIRM COMFORT"},{"url":"https://images-us-prod.cms.dynamics365commerce.ms/cms/api/cncgmclkfv/imageFileData/MAmwZg?pubver=1","text":"MATTRESS HEIGHT"}],"listedFeatures":["T3 Pocketed Coil® Technology & 2K Nano Coils:A system of 2,000 Nano Coils and Zoned T3 Pocketed Coil® Technology conforms to your body’s unique shape and provides up to 21% more support where you need it most.","Self-Response™ Latex:Ensures individualized support for different parts of your body. Plus, it provides welcome comfort and relief to shoulders and hips.","BlackICE™ with Plant-Based Cooling:The advanced temperature management system keeps you cool and comfortable to help you fall asleep and stay asleep all night.","Antimicrobial Mattress Protection:Keeps mattress fresh and clean from odor causing bacteria*.","Split-Sizes available to purchase via Call (877-384-2903)/Chat or In-Store"],"mattressBreakdown":{"Quilting Layer":["Anti-Microbial Protection*","BlackICE™ with Plant-Based Cooling Technology","¾\" SurfaceTouch™️ Gel Memory Foam"],"Comfort Layer":["½\" Firm Comfort Foam","3\" Dynamic Response™️ Memory Foam","1\ "Comfort layer made with Alpaca, Cashmere, and Silk Fibers","½\" Self-Response™️ Latex"],"Support System":["1\" 2K Nano Coil","Zoned T3 Pocketed Coil® Technology","Energy Foam","BeautyEdge®"]}}

About beautyrest

The Beautyrest collection is leading the industry in sleep innovations and construction technology with a wide range of products to fit everyone’s needs. Beautyrest offers luxury beds that feature gel-infused foam layers, cooling technology and patented pocketed coil technology for a restorative sleep experience like no other. Plus, there are more budget-friendly Beautyrest mattresses that prove great quality can also be found at a great value. In addition to mattresses, Beautyrest offers bed accessories like bed frames, baby and toddler furniture, pillows and crib mattresses.

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