Twin Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

Twin Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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Customize King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$1,061.00

Customize Cal King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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Cal King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
Cal King Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$1,061.00

Customize Queen Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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Queen Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
Queen Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$790.00

Customize Full Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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Full Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
Full Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$778.00

Customize Twin Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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Twin Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
Twin Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$744.00

Customize Twin XL Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
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Twin XL Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress
Twin XL Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress

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$778.00

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Expert Review video placeholder
Expert Review by Jed
If you're a side sleeper searching for great pressure relief or simply someone who enjoys a soft yet supportive feel, the Twin size Sealy Posturepedic Response Performance Cooper Mountain IV Plush Pillow Top Mattress is an outstanding option. The previous model was one of the most popular mattresses not only from Sealy but on our site in general, and the new version features updates across the board. With a Comfort Scale score of 7, this model provides a soft initial feel with firm underlying support.

Notable improvements to the Cooper Mountain include the Comfort Loft Cover with MoistureProtect, a quilt designed to wick away moisture for a more comfortable night of rest. Comfort is primarily provided through high grade polyurethane foams, which are all CertiPUR-US Certified. A layer of Sealy Air Foam offers initial body contouring, and it is uniquely designed to promote good airflow. A layer of SealyCushion Extra Soft Foam helps soothe pressure points to minimize tossing and turning, as well as promote better blood circulation. The SealyCool Gel Memory Foam layer in the center third supplies more support to the lower back as well as durability. Another layer of SealyCushion Extra Soft Foam creates deep down pressure relief, and it is engineered to really help side sleepers get the contouring comfort necessary to avoid waking up with achy limbs. Support comes from the Sealy Response Pro Encased Coil System, a coil system that boasts a coil density of over 200 more coils than the previous version. This coil system is one of the most forgiving on the market, and it contours well to the curves of your body while ensuring deep down support. It's great for those who expect a pet to jump into bed because when movement occurs on one side very little motion is felt on the other. It's also adjustable base compatible. One of the best edge systems being used today, the DuraFlex Edge also represents an improvement in edge support technology. It allows you to rest anywhere on the surface without sacrificing comfort or support.

In all, if you like a soft feel this is one of the top choices available on our site. The attention to detail Sealy gave to this new model is incredible and leaves nothing to be desired at this price point. This mattress is also backed by a 10-year warranty.

Physical Characteristics

Comfort This describes how a mattress feels. The Comfort Scale rating is based on how the cushioning materials conform to the body's shape. The higher the number the softer the mattress.

Quilt - Top of Mattress This is the outside cover on the top of the mattress. It covers and protects the comfort and support layers inside.

Comfort - Padding Layers This provides a cushioning layer between you and the support system in the bed. Different kinds of padding will provide different levels of comfort.

Correct Back Support System This is a general term used to describe how a mattress distributes and stabilizes body weight and maintains proper spinal alignment. Different materials provide different levels of support.

Box Spring - Foundation (optional)

Warranty This tells you what kind of warranty you have and how long it will last. A typical warranty lasts about 10 years.

  • Non-prorated
  • No Flip, No Rotate
  • 10 year warranty against manufacturer's defects

Made In This tells you where your mattress is manufactured.

  • United States

Code

  • MATT-907633, STD-907736, LP-907742

Physical Measurements

SizeHeightWidthLengthWeight
King14"76"80"96 lbs.
Cal King14"72"84"96 lbs.
Queen14"60"80"76 lbs.
Full14"53"75"63 lbs.
Twin14"38"75"45 lbs.
Twin XL14"38"80"48 lbs.
SizeCoil Count
King1117
Cal King1142
Queen911
Full791
Twin601
Twin XL639

Works With All Bed Types

Box Spring
Box Spring
Traditional Frames
Traditional Frames
Adjustable Bases
Adjustable Bases
Platform
Platform

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

Customer Reviews

Average Review

88%
417 Reviews
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Xsensor Overview

We test and measure body pressure on each mattress using sophisticated technology. We then provide you a personal recommendation.

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Comfort Depth Overview

See how far you'll sink into our mattresses - see how they'll feel. With our Comfort Depth measurements you'll know how a mattress will feel.

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Delivery Info

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Delivery Options & Timing:
Free In-Home Setup & Delivery
  1. TIMING: You'll receive your mattress in about 1 to 2 weeks, anywhere in the continental 48 states that's road accessible. Check your zip code for an estimated delivery date.
  2. IN-HOME WHITE GLOVE DELIVERY: It's super easy; the delivery team will bring in and place your new mattress in your bedroom, unpack it and take away the packaging. And mattress removal can be added for free when you select that option online. (Delivery is up to 2 flights of stairs. Additional arrangements are subject to charge by the delivery carrier.)
  3. SCHEDULING DELIVERY: You'll be called to arrange the delivery when your mattress arrives at the local delivery agent, approximately one week after ordering. Someone must be home to accept delivery.
  4. FURNITURE & BEDDING: Furniture & bedding deliver separately.
  5. WEEKEND OR EVENING DELIVERY: May be available for a nominal fee. Order by phone at 1-800-455-1052.
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Reviews

4.4 / 5.0
418 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
215
75
17
9
12
Sleep Position
Side (6)
Back (3)
Body Type
Petite (6)
Average (2)
Large (1)
Comfort compared to site specs
Just Right (5)
Softer (4)
Sleep Position
Side
Body Type
Large
Comfort compared to site specs
Just Right
Perfect I am large my wife is small I sleep on my side she is a back sleeper works great for both of us
September 8, 2019
Purchased
3 months ago
Sleep Position
Side
Body Type
Large
Comfort compared to site specs
Just Right
Nice!
A very comfy sleep!
September 5, 2019
Purchased
1 month ago
Sleep Position
Side
Body Type
Average
Comfort compared to site specs
Just Right
As Advertised
Decent price, good mattresses
September 4, 2019
Purchased
5 months ago
Sleep Position
Side
Body Type
Large
Comfort compared to site specs
Just Right
Good buy
Delivery was excellent mattress is comfortable but anything was better than my 20yr mattress good support like the edge support and I like how it cradles your body good mattress at a good price would by again hoping it will hold up. Only time will tell. Still happy with it after 1 month
September 1, 2019
Purchased
1 month ago
Sleep Position
Stomach
Body Type
Large
Comfort compared to site specs
Just Right
Excellent mattress
I highly recommend the Cooper Mountain IV mattress.
September 1, 2019
Purchased
2 months ago
Sleep Position
Side
Body Type
Average
Comfort compared to site specs
Softer
Really Nice Mattress
This is a really soft mattress. I use it with an adjustable frame and when sitting up it hurts my back its so soft. Much more comfortable when lying glat though.
September 1, 2019
Purchased
3 months ago
Sleep Position
Side
Body Type
Average
Comfort compared to site specs
Firmer
Not very comfortable
I have had this for about a month and i think i had maybe 2 nights sleep on it. Last night i was in so much pain i had to sleep in my sons bed. Good thing he is away at college. On softness scale it said 7, i think i would rate it at 5. Not only is it more on the firm side but its just not comfy. When you think pillowtop you think pillowy softness. Nothing like that! Its going in the guest room!
August 28, 2019
Purchased
1 month ago
Sleep Position
Side
Body Type
Large
Comfort compared to site specs
Firmer
Not soft.
Not as soft as I wanted. Surprised this is even in the soft spectrum. The pillow top is OK. Pressure points eventually melt into the memory foam. Otherwise good support.
August 27, 2019
Purchased
1 month ago
Sleep Position
Side
Body Type
Average
Comfort compared to site specs
Firmer
Dream!
This bed is GREAT. Somehow firm AND plush. It definitely has a firmer feel, though, so if you like to sink into your mattress, I'd get a softer model. I'm beyond thrilled with my purchase and the customer service!
August 26, 2019
Purchased
1 month ago
Sleep Position
Side
Body Type
Average
Comfort compared to site specs
Softer
Too soft
This mattress is advertised as a 6 on the firmness scale but it is much softer than the icomfort 1000 that i bought that is a 7 on their scale. I didnt feel the cooper mountain had very good support in the middle of the mattress. It was overly soft and the foams already started breaking down lees than a month. I would not buy this mattress again. The serta blue fusion 1000 is a much higher quality mattress. I really think us mattress needs to re evaluate their 6 on the firmness scale. I would rate it an 8 on the firmness scale.
August 24, 2019
Purchased
3 months ago