Sealy Response Cooper Mountain IV Plush Mattress Review

Updated February 11, 2020

Sealy's Cooper Mountain IV Plush 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's pros and cons.

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

Comfort Scale Rating

The Sealy Response Cooper Mountain IV Plush mattress is a medium-feeling mattress and we rate it 6 on our 10 point Comfort Scale (a 1 is hard, 10 is softest). This level of comfort will work for most people, it's a pretty neutral feel.

Expert Video Review of the Cooper Mountain IV Plush bed

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

Pros & Cons

PROS CONS
  • Good contouring and support
  • Edge support makes entire surface sleepable
  • Added support to the center third for the lower back
  • Trusted brand
  • Tested very well
  • Compatible with an adjustable base
  • Expensive end of Response Performance collection
  • Not recommended for average-size side sleepers

See the bed

Pressure Test Results

We pressure tested the Cooper Mountain IV Plush 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 tested well overall, with the exception of average-sized side sleepers, where it looks like they're experiencing too much pressure. For all other types, there's good pressure relief, but the body is supported properly. The light blue and green show the areas that are supported, and we can see the weight is distributed pretty evenly. The encased coil system really does a good job of supporting the right areas and keeping the spine aligned. These characteristics are important for making sure you sleep comfortably through the night and wake up without back pain.

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 Mattress Key Features

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

    This outer layer of coils provides edge support for better durability, an improved sitting edge, and a more uniform comfort from edge-to-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 to give durable support to the lower back without being rigid.

  3. 3. MoistureProtect

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

Comfort Depth Video

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

Jed's Comfort View

Andrew's Comfort View

Warranty

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

Conclusion

The Sealy Response Cooper Mountain IV Plush mattress tested very well for most types of sleepers. It has features that take it to the next level, such as the SealyCool Gel Memory Foam strategically placed only in the center of the bed to provide better support to the lower back. And the moisture-wicking cover, which helps keep you cool and dry throughout the night.

It has good pressure relief, shown in our tests, and does a great job of supporting the body in the right places. That, along with its neutral comfort level, leaves me comfortable recommending this bed to anyone looking for a quality bed in this price range. Unless you're a side sleeper within our average size range, where you might experience a bit too much pressure. It has edge support that will make the entire surface useable, and the individually encased coils will minimize motion transfer, so this bed will work well for couples as well. It'll be comfortable and supportive, and it has handles to make rotating it every so often an easy job.

See the bed

Sealy Response Cooper Mountain IV Plush Specifications:

Product Name
Queen Price

$1,749

Brand
Sealy
Comfort Scale Number
6 (Medium)
Coil Count
911
Coil Gauge
15
Height
12.5"
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.