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Sierra Sleep® by Ashley® Millennium Hybrid Luxury Plush Tight Top King Mattress in a Box

When it comes to your comfort, discover the luxury of this hybrid plush mattress. A layer of cooling gel latex and two layers of temperature-regulating material keep you at a comfortable temperature all night long. 

When it comes to your comfort, discover the luxury of this hybrid plush mattress. A layer of cooling gel latex and two layers of temperature-regulating material keep you at a comfortable temperature all night long. Copper-infused memory foam contributes t

Copper-infused memory foam contributes to the cooling performance, and a green tea-infused support foam base keeps your mattress fresh. Contouring comfort foam conforms to your body, delivering amazing support, pressure relief and comfort. In addition, the premium pressure-sensitive NanoCoil unit and individually wrapped coil pack help to provide a great night's sleep.

2" copper-infused cooling memory foam; 3" sculpted body-contouring comfort foam

Premium pressure-sensitive NanoCoil unit; individually wrapped coil pack

Mattress ships in a box; please allow 48 hours for your mattress to fully expand after opening

Note: Purchasing mattress and foundation from two different brands may void warranty; see warranty for details

Home is heritage—and heritage is uncompromising. This means the quality construction, unique stylings, and exceptional comfort of home furnishings from Signature Design by Ashley® always match the integrity of your home and family. The Signature Design by Ashley® line takes pride in its furniture—inspired by the American home for more than 70 years and enriched by you.

*Mattress only. All other items not included. Color and saturation may vary due to lighting and monitor/phone screen settings.

Serta® Perfect Sleeper® Cobalt Calm 12" Wrapped Coil Extra Firm Tight Top King Mattress

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

Serta® Perfect Sleeper® Dazzling Night 12" Hybrid Firm Tight Top King Mattress

Featuring a 3 zoned coil design, this mattress offers pressure relief and support where you need it, with a Cool Twist® Gel Memory Foam that contours to your body—with upgrades available with more cooling layers and support

Serta® Perfect Sleeper® Cobalt Calm 14.5" Wrapped Coil Firm Pillow Top King 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-with upgrades available for even more cooling, comfort, and support..

Cool Twist® Gel Foam - Cooling gel is swirled directly into a breathable foam designed to promote airflow and heat dissipation.

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.

PillowSoft® Aire Soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design.

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.

Firm and supportive with a pillowy, cloud-like top layer

Premium memory foam is temperature-sensitive; it may feel firmer in cooler temperatures and softer in warmer ones. For your preferred comfort, please allow several hours for your memory foam mattress to adjust to the room’s temperature

Meets Federal Fire Retardant Safety Standard

Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists. Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists.
We believe that mattress shopping shouldn’t be stressful. We also believe whether you are buying online or in-store, you should be comfortable during the entire purchase process. So no matter if you're a back, stomach or side sleeper or if you sleep at night or during the day, we have a product to help you get the sleep you deserve. Check out some of the things we’ve learned along the way that help us to continue to be able to bring new sleep innovations to the table.

*Mattress only, all other products sold separately. Images may not depict actual size.

Gives the sensation of lying on top of the mattress with little give

Firm and supportive; Ideal for stomach or back sleepers

Serta® Perfect Sleeper® Adore Azul 10.5" Hybrid Medium Tight Top King Mattress

Featuring an 825-coil density system, this supportive mattress offers zoned comfort and pressure relief where you need it - with upgrades available for even more cooling, comfort, and support.

Soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling design.

Gel foam lumbar support band provides support for the lower back and hips.

This 825-coil density system provides contouring, cradling support and minimizes motion transfer.

BEDGEAR® S7 Performance® 12" Memory Foam Plush Tight Top King Mattress in a Box

Our S7 Performance® King Mattress are cool-to-the-touch, enhanced for breathability, and designed to conform to your body for a more comfortable sleep. All of our mattresses are engineered with foam that is CertiPUR-US certified.

Our S7 Performance® Queen Mattress are cool-to-the-touch, enhanced for breathability, and designed to conform to your body for a more comfortable sleep. All of our mattresses are engineered with foam that is CertiPUR-US certified.

Materials: Ver-Tex top cover, react foam, Air-X side panels

Featuring a ventilated React™ foam technology for conforming pressure relief, this mattress is designed for deeper, more restful sleep.

Ventilated foam and breathable Air-X® mesh sides keep air flowing in and around the mattress to help your body regulate its temperature while you sleep.

Sleep hot? Ver-Tex™ is designed to keep you cool throughout the night by dispersing heat away from your body and preventing overheating before it starts.

Use a clean, damp cloth with mild detergent to clean any soiled areas. Air dry only.

Mattress only, all other products sold separately. Images may not reflect actual size.

Serta® iComfort® Iona 13" Memory Foam Medium Tight Top King Mattress

Serta iComfort Memory Foam features zoned support from memory foam layers for contouring pressure-relief and breathability. With alternating levels of firmness, ergonomically design support zones in every Serta® mattress are designed to keep your body aligned as you sleep.

Serta® iComfort® Aspire 14" Memory Foam Medium Tight Top King Mattress

Serta® iComfort® Iona 13" Memory Foam Plush Smooth Top King Mattress

Serta® iComfort® Aspire 14" Memory Foam Plush Smooth Top King Mattress

Serta iComfort Memory Foam features zoned support from memory foam layers for contouring pressure-relief and breathability. With alternating levels of firmness, ergonomically design support zones in every Serta® mattress are designed to keep your body ali

5 support zones designed for full-body spinal alignment, with cool-to-the-touch fabric and premium memory foam comfort.

CoolFeel™ Fabric keeps you comfortable throughout the night

Our 5 ZoneResponse™ Design provides head-to-toe comfort and support for restorative sleep

Our PerfectConform™ Memory Foam contours and cradles your pressure points for rejuvenating sleep

Plush - Great for side sleepers for extra comfort at the shoulders, hips and lower back

Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists. Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists. We believe that mattress shopping shouldn’t be stressful. We also believe whether you are buying online or in-store, you should be comfortable during the entire purchase process. So no matter if you're a back, stomach or side sleeper or if you sleep at night or during the day, we have a product to help you get the sleep you deserve. Check out some of the things we’ve learned along the way that help us to continue to be able to bring new sleep innovations to the table.

Serta® iComfort® Elana 11.5" Memory Foam Firm Smooth Top King Mattress

Firm - Ideal for stomach and back sleepers with extra support for heavier sleepers

Serta® iComfort® Aveda 12" Memory Foam Medium Tight Top King Mattress

Medium - Perfect for all sleepers-side, back, stomach or combination sleepers

A champion of comfort for all, Serta, Inc. has pioneered sleep innovation for more than 90 years, brining quality products to more than 150 countries worldwide.

Serta takes a consumer-centric approach in everything it does, with help from its beloved Serta Sheep, the true curators of Serta Comfort.  Serta is a leading provider of beds to the hospitality industry, including several of the world’s largest hotel chains.

Serta® iComfort® Aveda 12" Memory Foam Plush Tight Top King Mattress

Serta iComfort Memory Foam features zoned support from memory foam layers for contouring pressure-relief and breathability. With alternating levels of firmness, ergonomically design support zones in every Serta® mattress are designed to keep your body aligned as you sleep. 

Serta® Classic® Dorian 12.5" Wrapped Coil Firm Tight Top King Mattress

Featuring a soft, breathable cover, PillowSoft® Aire foam, and an 800-density coil support system, this mattress helps you sleep comfortably and wake ready to ease into your day. With 3 zones for lower back support, this mattress balances cool breathability with responsive support for a classically comfortable rest.

Serta® Classic® Alden 11.5" Wrapped Coil Medium Tight Top King Mattress

Serta® Classic® Dorian 12.5" Wrapped Coil Plush Euro Top King Mattress

Serta® Classic® Brecon 13.5" Wrapped Coil Medium Tight Top King Mattress

Featuring a soft, breathable cover, PillowSoft® Aire foam, and an 800-density coil support system, this mattress helps you sleep comfortably and wake ready to ease into your day. With 3 zones for lower back support, plus a Gel Memory Foam upgrade for even more pressure relief, this mattress balances cool breathability with responsive support and pressure relief for a classically comfortable rest.

Featuring a soft, breathable cover, PillowSoft® Aire foam, and an 800-density coil support system, this mattress helps you sleep comfortably and wake ready to ease into your day. With 3 zones for lower back support, plus a Gel Memory Foam upgrade for even

Support - Featuring 3 zones for lower back support plus an 800 density individually wrapped coil system for classic comfort

Pressure relief - Enhanced with gel memory foam for contouring relief

Cooling - Topped with a breathable fabric so you sleep and wake refreshed

Motion control - Designed to minimize the impact of your partner's movement

Rest refreshed with a breathable mattress cover

A soft, breathable mattress cover helps you rest and wake refreshed

A cushioning foam relieves pressure while promoting airflow

3 zones provide lower back support for classic comfort

With an 800 edition custom support coil system

Durable, individually-wrapped coils help you sleep supported all night

Lbs (high)

Lbs (low)

Serta® Classic® Brecon 13" Wrapped Coil Firm Tight Top King Mattress

Featuring a soft, breathable cover, PillowSoft® Aire foam, and an 800-density coil support system, this mattress helps you sleep comfortably and wake ready to ease into your day. With 3 zones for lower back support, this mattress balances cool breathabili

Support - Featuring 3 zones for lower back support plus an 800-density individually wrapped coil system for classic comfort

Pressure relief - Cushioning foams help relieve aches and pains

Made for - Best for stomach and back sleepers

Support - Featuring 3 zones for lower back support plus an 800-density indiviually wrapped coil system for classic comfort

Dual foams enhance pressure relief and cooling all night

Cooling - Topped with breathable fabric so you sleep and wake refreshed

Made for - Best stomach and back sleepers

800 edition custom support coil system helps you sleep supported all night

Sierra Sleep® By Ashley® Elite Springs 14" Wrapped Coil Firm Tight Top King Mattress in a Box

Rest easy. This firm king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam including response memory foam support you with contouring comfort. Power packed coils keep motion transfer to a minimum. From afternoon dozing to deep sleep, there’s nothing this mattress can’t help you conquer.

Sierra Sleep® By Ashley® Elite Springs 14" Wrapped Coil Plush Tight Top King Mattress in a Box

Rest easy. This plush king mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam including response memory foam support you with contouring comfort. Power packed coils keep motion transfer to a minimum. From afternoon dozing to deep sleep, there’s nothing this mattress can’t help you conquer.

Rest easy. This firm queen mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam including response memory foam support you with contouring comfort. Power packed coils keep motion transfer to a minimum. From 

900 individual power packed wrapped coils

Ashley edge "steel encased"; 2 perimeter rows of 13-gauge wrapped coils for edge support

Note: Purchasing mattress and foundation from two different brands may void warranty; check warranty for details

Rest easy. This plush queen mattress has all the essentials for a superior night of sleep at an affordable price. Layers of foam including response memory foam support you with contouring comfort. Power packed coils keep motion transfer to a minimum. From

Serta® iSeries NXG™ 12" Hybrid Firm Smooth Top King Mattress

Serta® iSeries NXG™ the next generation of comfort. Designed with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense.

Serta® iSeries NXG™ 13.5" Hybrid Firm Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Hybrid Firm Smooth Top Split Head King Mattress

Serta® iSeries NXG™ 12.5" Hybrid Medium Smooth Top King Mattress

Serta® iSeries NXG™ 12" Memory Foam Luxury Firm Smooth Top King Mattress

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG™ memory foam for deep, contouring pressure relief.

Serta® iSeries NXG™ 13.5" Memory Foam Medium Smooth Top King Mattress

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG memory foam for deep, contouring pressure relief.

Serta® iSeries NXG™ 13.5" Memory Foam Medium Smooth Top Split Head King Mattress

Serta® iSeries NXG™ 13.5" Hybrid Plush Smooth Top Split Head King Mattress

Serta® iSeries NXG™ 13.5" Hybrid Medium Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Hybrid Medium Smooth Top Split Head King Mattress

Serta® iSeries NXG™ 12.5" Hybrid Plush Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Hybrid Plush Smooth Top King Mattress

Serta® iSeries NXG™ 12.5" Memory Foam Plush Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top King Mattress

Serta® iSeries NXG™ 13.5" Memory Foam Ultra Plush Smooth Top Split Head King Mattress

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG™ memory foam for deep, contouring pressure relie

Meets federal fire retardant safety standard

A 5-zoned coil system offers targeted support for your back and body with BestEdge® Support for lasting, edge-to-edge mattress stability

Innovative, high-density, premium memory foam for deep, contouring pressure relief

Topped with a cool-to-the-touch CoolFeel™ Cover and Carbon Fiber Memory Foam draws heat away from the body

Designed to minimize the impact of your partner's movement

This firm feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. High-density NXG™ Memory Foam provides deep, contouring pressure relief. A cool-to-the-touch cover offers immediate cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. The hybrid models feature a 5-zone coil system with alternating firm and plush areas to better support the curves of your back and body.

CertiPUR-US® Certified means our foam was tested for and is free from harmful chemicals and gasses

To protect your mattress from stains and spills, we highly recommend using a mattress protector; This will also help with the overall health and lifespan of your mattress.

We do not recommend applying liquids to the product; Applying liquids may stain the fabric and make the soiled area worse; Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product.

We suggest applying baking soda to the soiled area, let stand about 15 minutes, vacuum, and repeat as needed; Air the product out as much as possible.

Serta iSeries NXG mattresses are compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.

Serta has been in the sleep industry for over 90 years and has been dedicated the entire time to helping people like you find a solution to your sleep problems so you can finally sleep better than you ever have. We love helping people find their best sleep and this is why our brand exists.

We believe that mattress shopping shouldn’t be stressful. We also believe whether you are buying online or in-store, you should be comfortable during the entire purchase process. So no matter if you're a back, stomach or side sleeper or if you sleep at night or during the day, we have a product to help you get the sleep you deserve. Check out some of the things we’ve learned along the way that help us to continue to be able to bring new sleep innovations to the table.

*Mattress only, all other products sold separately. Images may not reflect actual size.

Experience a series of benefits delivering immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG memory foam for deep, contouring pressure relief

This medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief, and ideal support for a deeper, more restful sleep at a price that makes sense. High-density NXG™ Memory Foam provides deep, contouring pressure relief. A cool-to-the-touch cover offers immediate cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. The hybrid models feature a 5-zone coil system with alternating firm and plush areas to better support the curves of your back and body.

Sierra Sleep® by Ashley® Chime 12" Hybrid Ultra Plush Tight Top King Mattress in Box

Enjoy endless possibilities for restful sleep with this hybrid innerspring king mattress. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High density foam provides the firmness you love. Gel memory foam provides restorative support for your lower back. Hypoallergenic material is ideal for sufferers of allergies for ultimate undisturbed sleep–not to mention peace of mind. Plus, this mattress arrives in a box for quick and easy setup. Simply bring it to your room, remove the plastic wrap, and unroll. You’ll be amazed at how it fully expands within minutes.

Enjoy endless possibilities for restful sleep with this hybrid innerspring mattress. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High density foam provides the firmness you love. Gel memory foam

Enjoy endless possibilities for restful sleep with this hybrid innerspring king mattress. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High density foam provides the firmness you love. Gel memory foam provides restorative support for your lower back. Hypoallergenic material is ideal for sufferers of allergies for ultimate undisturbed sleep–not to mention peace of mind. Plus, this mattress arrives in a box for quick and easy setup. Simply bring it to your room, remove the plastic wrap, and unroll. You’ll be amazed at how it fully expands within minutes. Foundation/box spring available, sold separately.

.75" high density gel memory foam lumbar support

Hypoallergenic: made from materials that don’t trigger allergies

2 perimeter rows of 9" 13-gauge pocketed coils

CertiPur-US certified, adjustable base compatible

Foundation/box spring available, sold separately

Ashley® Furniture is dedicated to empowering your design vision. Discover all the inclusive styles you desire, whether you're decking out your first apartment or designing your dream home. Starting from travel-inspired sketches and backed by 70 years of experience, each piece is expertly crafted for years of enjoyment. At Ashley® Furniture, the work put into quality construction, unique stylings, and exceptional comfort matches the integrity of your home and family. From living rooms to patios, you’ll find exactly what you need for your space with Ashley® Furniture.

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