StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › Beautyrest
Beautyrest
Beautyrest Black Series Three Firm King Mattress

Beautyrest Black Series Three Firm King Mattress

4.5(4,600 ratings)

Best price now

$1,595.00at eBayChecked Nov 9

62% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

Visit eBay

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $1,595.00 at eBay on Nov 9.
  • It's down $2,454.00 from $4,049.00 a week ago.
  • Checked at 13 stores.

Our take on the Beautyrest Black Series Three Firm King Mattress

The Beautyrest Black Series Three Firm is a king innerspring mattress that layers gel memory foam and self-response latex over triple-stranded pocketed coils. It is Beautyrest's mid-tier Black model, so it sits above the standard Black line in pressure relief and airflow but below the Series Four and Five. The firm feel suits back and stomach sleepers and heavier couples who want support without a rock-hard surface. Owners rate it well overall, though some find the firm surface too hard at first and a few report body impressions over time.

Best forBack and stomach sleepersCouples who want motion isolationHot sleepersHeavier sleepers needing support
Pros
  • Firm, supportive surface with latex for responsive pressure relief
  • Triple-stranded pocketed coils limit motion transfer between partners
  • Gel memory foam and airflow-focused design aim at cooler sleep
  • King size gives room for two without edge crowding
  • Beautyrest's Black line has a long track record for durability
Cons
  • Firm feel is too hard for many side sleepers
  • Some owners report body impressions after a year or two
  • Heavy and hard to move or rotate without help
  • Latex-and-coil build costs more than a basic innerspring

Beautyrest Black Series Three Firm King Mattress prices at every store

  • Havertys FurnitureNew

    In stock

    $4,199.00Checked 7 h ago
    Visit Havertys Furniture
  • GabbertsNew

    In stock

    $4,199.00Checked Nov 9
    Visit Gabberts
  • BeautyrestNew

    In stock

    $4,199.00+ $10.50 shippingChecked 7 h ago
    Visit Beautyrest
  • Raymour & FlaniganNew

    In stock

    $3,129,000.00Checked 7 h ago
    Visit Raymour & Flanigan
  • eBayPre-owned

    Availability unknownSold by handup-02744 (99.2% positive, 202 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $1,120.00+ $225.00 shippingChecked Nov 9
    Visit eBay
  • eBayNew

    Availability unknownSold by starsluckysales (100% positive, 3,000 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $1,595.00Free shippingChecked Nov 9
    Visit eBay
  • City MattressNew

    Availability unknown

    $2,849.00Checked 7 h ago
    Visit City Mattress
  • Mattress KingNew

    Availability unknown

    $3,399.00Checked 7 h ago
    Visit Mattress King
  • Williams-SonomaNew

    Availability unknown

    $3,999.00Checked 7 h ago
    Visit Williams-Sonoma
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $4,049.00Free shippingChecked 7 h ago
    Visit Amazon
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $4,049.00Checked Nov 4
    Visit Amazon
  • NFMNew

    Availability unknown

    $4,199.00Checked Nov 1
    Visit NFM
  • WayfairNew

    Availability unknown

    $4,799.00Checked Oct 30
    Visit Wayfair
  • Macy'sNew

    Availability unknown

    $4,799.00Checked Oct 30
    Visit Macy's
  • Big Sandy SuperstoreNew

    Availability unknown

    $4,799.00Checked Oct 30
    Visit Big Sandy Superstore

Store links may earn us a commission.

Beautyrest Black Series Three Firm King Mattress price history

$4,199.00$2,849.00
Oct 30Nov 11

Lowest price we've seen: $2,849.00 on Nov 11 at City Mattress; highest $4,199.00 on Oct 30. Tracked across 12 stores since Oct 30.

What reviewers say

  • 4.5 / 54,600 ratings

Owners rate the Series Three Firm highly, praising its support and the way it isolates motion for couples. The most common complaint is that the firm surface feels harder than expected, and a minority mention sagging or impressions later on.

What people mention
  • FirmnessMixedBack and stomach sleepers like the support, but side sleepers often find it too hard.
  • Motion transferPraisedCouples say a partner's movement barely registers across the king surface.
  • TemperaturePraisedOwners report it sleeps cooler than their previous foam mattress.
  • DurabilityMixedMany report years of steady support, while some see impressions within a couple of years.
  • WeightCriticisedOwners say the mattress is heavy and hard to rotate or move without help.

About the Beautyrest Black Series Three Firm King Mattress

Experience the best of Beautyrest, featuring advanced temperature management technology, Micro Diamond memory foam, and advanced, Triple-Stranded Pocketed Coil technology. Self-Response latex offers a specialized upgrade for responsive pressure relief while maximizing airflow for cool sleep every night.

Specifications

Size
King
Type
Innerspring, Gel Memory Foam

Questions and answers

Is the Series Three Firm good for side sleepers?
Mostly no. Side sleepers usually need a softer surface to cushion shoulders and hips, and owners often describe this one as firm to very firm. Combination sleepers who spend little time on their side may still be fine.
How does it differ from the Black Series Two?
The Series Three adds self-response latex over the coil unit for more responsive pressure relief and airflow. It also steps up the temperature-management layers, which matters if you sleep hot.
Does it need a box spring?
It works on a box spring, a slatted frame or an adjustable base. Beautyrest recommends a supportive foundation; a sagging or flexing base is a common cause of complaints about impressions.
Will it soften over time?
The latex and foam layers break in slightly in the first weeks, but the firm support comes mostly from the coil unit and stays firm. If it feels too hard after a month, it likely will not change much.
What is the king size in inches?
A standard king is about 76 by 80 inches, so it fits two adults comfortably. Measure your room and doorways first, since the mattress is heavy and does not bend.
Where is the Beautyrest Black Series Three Firm King Mattress cheapest?
At eBay, for $1,595.00, 62% under what the other stores charge, as of our latest check.
Is the Beautyrest Black Series Three Firm King Mattress at its lowest price?
Yes: $1,595.00 is the lowest price we've seen for it since October 30.
What do buyers say about the Beautyrest Black Series Three Firm King Mattress?
Rated 4.5 out of 5 from 4,600 ratings.
Where can I buy the Beautyrest Black Series Three Firm King Mattress?
13 stores we checked sell it, including City Mattress, Raymour & Flanigan, Amazon, Beautyrest, Williams-Sonoma.

Stores we've priced the Beautyrest Black Series Three Firm King Mattress at

  • Big Sandy Superstore deals and prices
  • Macy's deals and prices
  • Mattress King deals and prices
  • NFM deals and prices
  • Raymour & Flanigan deals and prices
  • Wayfair deals and prices
  • Williams-Sonoma deals and prices

More from Beautyrest

  • B
    Beautyrest Black Series One Medium Pillow Top King Mattress
    Beautyrest Black Series One Medium Pillow Top King Mattress
  • B
    Beautyrest Level One 13 Inch Firm Tight Top Mattress with Box Spring
    Beautyrest Level One 13 Inch Firm Tight Top Mattress with Box Spring
  • B
    Beautyrest 14” Cooling Charcoal-Infused Gel Memory Foam Mattress with Firm Support
    Beautyrest 14” Cooling Charcoal-Infused Gel Memory Foam Mattress with Firm Support
  • B
    Beautyrest BR800 Greenwood 10.5" Firm Mattress
    Beautyrest BR800 Greenwood 10.5" Firm Mattress
  • B
    Beautyrest Level One 13" Firm Tight Top Mattress Set - Queen Split
    Beautyrest Level One 13" Firm Tight Top Mattress Set - Queen Split
  • B
    Beautyrest Black Series One Medium Pillow Top Full Mattress
    Beautyrest Black Series One Medium Pillow Top Full Mattress
  • B
    Beautyrest World Class Level Four 16.25" Firm Pillow Top Mattress + Box Spring
    Beautyrest World Class Level Four 16.25" Firm Pillow Top Mattress + Box Spring
  • B
    Beautyrest World Class Level Three 13" Firm Tight Top Mattress + Box Spring
    Beautyrest World Class Level Three 13" Firm Tight Top Mattress + Box Spring
All Beautyrest deals and products →

More innerspring mattresses

  • S
    Serta Classic Brecon Mattress
    Serta Classic Brecon Mattress
  • S
    Stearns & Foster Lux Estate Firm Pillow Top
    Stearns & Foster Lux Estate Firm Pillow Top
  • W
    WinkBed Original
    WinkBed Original
  • T
    Tempur-Pedic Tempur-LuxeBreeze Mattress
    Tempur-Pedic Tempur-LuxeBreeze Mattress
  • B
    Beautyrest World Class Level Four 16.25" Plush Pillow Top Mattress + Box Spring
    Beautyrest World Class Level Four 16.25" Plush Pillow Top Mattress + Box Spring
  • P
    Plank Firm
    Plank Firm
  • S
    Serta 10.5" Full Mattress, Perfect Sleeper Midsummer Nights Firm
    Serta 10.5" Full Mattress, Perfect Sleeper Midsummer Nights Firm
  • M
    Modway Jenna Innerspring and Foam Mattress
    Modway Jenna Innerspring and Foam Mattress