Sealy Response Cooper Mountain IV Plush Pillow Top Mattress Review

Updated February 11, 2020

Sealy's Cooper Mountain IV Plush Pillow Top mattress is part of their Response Performance Collection. We tested all of Sealy’s Response mattresses for a detailed and comprehensive review. Read on for our detailed assessment of Cooper Mountain IV Plush Pillow Top's pros and cons.

Sealy Response Cooper Mountain IV Plush Pillow Top mattress on top of a box spring

Comfort Scale Rating

The Sealy Response Cooper Mountain IV Plush Pillow Top mattress is a plush-feeling mattress and we rate it 7 on our 10 point Comfort Scale (a 1 is hard, 10 is softest). This level of comfort will work for those who like a softer feeling bed.

Expert Video Review of the Cooper Mountain IV Plush Pillow Top bed

Here’s our quick Video Review. It highlights the features, benefits and our impression.

Pros & Cons

PROS CONS
  • Great contouring and back support
  • Edge support
    • Makes the entire surface sleepable
    • Creates a better sitting edge
    • Increases durability
  • Added support to the center third for the lower back
  • Trusted brand - Sealy has been around a long time
  • Tested exceptionally well
  • Compatible with an adjustable base
  • Too soft for some, especially stomach sleepers
  • Expensive end of the Response Performance beds

See the bed

Pressure Test Results

We pressure tested the Cooper Mountain IV Plush Pillow Top mattress with small/petite, average and big/large body size people on their sides and on their back sleeping positions to measure the support and comfort.

The Cooper Mountain IV Plush Pillow Top excelled in our pressure-testing for all sleeper types. It's soft and supportive, we can see that where there's light blue and green. The back support is essential for ensuring that you don't wake up with back pain. Obviously shown by our tests, the encased coil system combined with the added support in the center third provides the body with sufficient support. There's not too much pressure, so it'll prevent you from tossing and turning throughout the night.

BACK SLEEPER SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2 Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2
BACK SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large back sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average back sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite back sleeper heatmap Avg Pressure: mmHg - Area: inches2
SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs Large side sleeper heatmap Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs Average side sleeper heatmap Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs Petite side sleeper heatmap Avg Pressure: mmHg - Area: inches2

Sealy Response Cooper Mountain IV Plush Pillow Top Mattress Key Features

Sealy Cooper Mountain IV Plush Pillow Top cutaway
  1. 1. DuraFlex Edge System

    This outer layer of coils provides edge support for better durability, improves the sitting edge, and makes the mattress comfortable all the way to the edge.

  2. 2. Zoned Support with SealyCool Gel Memory Foam

    The cushioning foam infused with gel is added only to the center third of the bed which adds durable and flexible support to the lower back.

  3. 3. MoistureProtect

    The cover fabric is made to draw any moisture away from your body, so you stay dry and comfortable throughout the whole night.

Comfort Depth Video

We measured how far your hips and shoulders sink into the Sealy Response Cooper Mountain IV Plush Pillow Top mattress with different body types.

Jed's Comfort View

Andrew's Comfort View

Warranty

The Sealy Response Cooper Mountain IV Plush Pillow Top mattress comes with a 10-year warranty for factory defects.

Conclusion

The Sealy Response Cooper Mountain IV Plush Pillow Top mattress did well in our tests for pressure relief and back support for all sleeper types. There are lots of Sealy's high-quality foams providing pressure relief, and the encased coil system is contouring. The Sealy Response Pro Encased Coil system also provides very precise support and minimizes motion transfer really well. That along with the DuraFlex Edge make this a bed that will work well for those who have sleep partners. You won't be feeling their movements all night, and you won't feel like you have to fight over the middle, the edge support makes it comfortable to sleep all the way to the edge.

If you're looking for a high-quality mattress that is soft and will last you a long time, I'd recommend Sealy's Cooper Mountain IV Plush Pillow Top. It has lots of good customer reviews and it's construction and premium materials tell me why!

See the bed

Sealy Response Cooper Mountain IV Plush Pillow Top Specifications:

Product Name
Queen Price

$1,749

Brand
Sealy
Comfort Scale Number
7 (Plush Pillow Top)
Coil Count
911
Coil Gauge
15
Height
14"
Comfort Padding Layers
Warranty
  • Non-prorated
  • No Flip, No Rotate
  • 10-year warranty against manufacturer's defects
Back Support System
Quilt Top of Mattress
Edge Support

About The Author Juliana

Juliana is a digital content analyst who has taken a deep dive into the mattress industry. She spends her free time hanging out with her friends (read: her cats), and trying to get creative with some painting or sewing.