Serta

Serta Perfect Sleeper Cobalt Calm Extra Firm 12" Mattress

Name: Serta Perfect Sleeper Cobalt Calm Extra Firm 12" Mattress
Brand: Serta
SKU: 500104181-1010
Price: 990.0 USD
Availability: InStock

$990.00

Shipping calculated at checkout.

Product variants

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the Cobalt Calm Extra Firm Mattress\u003c\/h2\u003e\n\u003cp\u003eFeaturing a 3-zoned coil design, this mattress offers pressure relief and support where you need it, with Cool Twist® Gel Memory Foam that contours to your body.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCool Twist® Gel Memory Foam\u003c\/strong\u003e - This unique design features cooling gel swirled into premium memory foam. This breathable memory foam helps enhance airflow and heat dissipation for a feeling that can only be described as a cool, contouring type of comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 Zoned Coil Design\u003c\/strong\u003e - This 850-coil density system offers three support zones with targeted support for your lower back and hips and cradled comfort everywhere else.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Microbial Technology\u003c\/strong\u003e - Our anti-microbial mattress technology will keep your mattress fresh and clean from odor-causing bacteria.\u003c\/li\u003e\n\u003cli\u003eCustom Support Coil System - This 825-coil density system provides contouring, cradling support and minimizes motion transfer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase Change Material - \u003c\/strong\u003eStay temperature-regulated with this technology, which absorbs body heat, and then releases it if you cool down too much. \u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest Edge® Foam Encasement - \u003c\/strong\u003eAdded support for the edge makes it easier to sit down as well as get out of bed. It also makes the sleeping surface more stable and increases the durability of the mattress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003ch3\u003e Benefits\u003c\/h3\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003ch3\u003eLayers\u003c\/h3\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003cp\u003eCooling\u003c\/p\u003e\n\u003cp\u003eEdge Support\u003c\/p\u003e\n\u003cp\u003eHandles\u003c\/p\u003e\n\u003cp\u003eLow Motion Transfer\u003c\/p\u003e\n\u003cp\u003eLumbar Support\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eReinforced Center\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eMoisture Wicking\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAntimicrobial\u003c\/p\u003e\n\u003cp\u003eMade in USA\u003c\/p\u003e\n\u003cp\u003e10 Year Warranty\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e1” PerfectPure Fiber \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e0.5\" Support Foam\u003c\/p\u003e\n\u003cp\u003e0.5\" Support Foam\u003c\/p\u003e\n\u003cp\u003e1\" Cool Twist Gel Memory Foam\u003c\/p\u003e\n\u003cp\u003e1\" Serta Support Foam\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e8” 850 3 Zoned Coil System\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e1” Balanced Support Pad\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 33%;\"\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eComfort:\u003c\/strong\u003e Extra Firm, 2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eStyle:\u003c\/strong\u003e Tight Top Innerspring\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCoil count:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003eTwin: 473 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e Twin XL: 522 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e Full: 655 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e Full XL: 722 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e Queen: 823 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e King: 1,059 \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-weight: 400;\"\u003e Cal King: 1,125\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eSplit Cal King: 1,064\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003cstrong\u003eCoil Gauge:\u003c\/strong\u003e 14.75\u003c\/span\u003e\u003cspan style=\"font-weight: 400;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e"}

About the Cobalt Calm Extra Firm Mattress

Featuring a 3-zoned coil design, this mattress offers pressure relief and support where you need it, with Cool Twist® Gel Memory Foam that contours to your body.

Features

Cool Twist® Gel Memory Foam - This unique design features cooling gel swirled into premium memory foam. This breathable memory foam helps enhance airflow and heat dissipation for a feeling that can only be described as a cool, contouring type of comfort.
3 Zoned Coil Design - This 850-coil density system offers three support zones with targeted support for your lower back and hips and cradled comfort everywhere else.
Anti-Microbial Technology - Our anti-microbial mattress technology will keep your mattress fresh and clean from odor-causing bacteria.
Custom Support Coil System - This 825-coil density system provides contouring, cradling support and minimizes motion transfer.
Phase Change Material - Stay temperature-regulated with this technology, which absorbs body heat, and then releases it if you cool down too much.
Best Edge® Foam Encasement - Added support for the edge makes it easier to sit down as well as get out of bed. It also makes the sleeping surface more stable and increases the durability of the mattress.

Benefits

Layers

Specs

Cooling

Edge Support

Handles

Low Motion Transfer

Lumbar Support

Reinforced Center

Moisture Wicking

Antimicrobial

Made in USA

10 Year Warranty

1” PerfectPure Fiber

0.5" Support Foam

1" Cool Twist Gel Memory Foam

1" Serta Support Foam

8” 850 3 Zoned Coil System

1” Balanced Support Pad

Comfort: Extra Firm, 2

Style: Tight Top Innerspring

Coil count:

Twin: 473
Twin XL: 522
Full: 655
Full XL: 722
Queen: 823
King: 1,059
Cal King: 1,125
Split Cal King: 1,064

Coil Gauge: 14.75

Works With All Bed Types

Box Spring

Traditional Frames

Adjustable Bases

Platform

Your mattress purchase is fully compatible with all modern support systems, including adjustable base, platform bed, box spring/foundation, even the floor!