Beautyrest Black K-Class Ultra Plush Pillowtop Mattress Review

Updated October 28, 2022

Are you thinking about getting this top-of-the-line mattress from Beautyrest Black? The K-Class Ultra Plush Pillowtop is definitely a big-ticket item that needs to be researched, so we compiled our reviews and information on this bed so you can be more informed in your decision making:

Comfort Scale Rating

The K-Class Ultra Plush Pillowtop mattress has a soft, luxurious feel; we rate it a 7 on our 10 point Comfort Scale (a 1 is hard, 10 is softest.) This mattress will appeal to you only if you like a pretty soft bed. If you like anything firmer than that, you need to consider another mattress. (For example, you like a firm mattress.)

Expert Video Review

Here’s our quick K-Class Ultra Plush Pillowtop Video Review. It highlights the features, benefits, and our impression. 

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Pros & Cons

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Pressure Test Results

We pressure tested the K-Class Ultra Plush Pillowtop mattress and will publish our results in the near future. We tested it with petite, average, and large body size people on their side and back sleeping positions to see what kind of support and comfort you can expect. (Learn how we test.) 

When the results are published, I would expect it to show no pressure points because of all the comfort materials on this thick mattress. The thing to watch for will be how much support it has, but that should be good too because of the layer of nano-coils used in the bed.

Below is a sample of what a pressure test looks like. We'll update our review and let you know how it did.

The pressure test results for this mattress are not yet available but it will be available soon.  Below is just an example.

Personalized Recommendations - Learn More »

Use our pressure test result to see if this is the right mattress for you!

	Petite	Average	Large
Back Sleeper
Side Sleeper

• Recommended
• Good
• Not Recommended

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

	BACK SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs	Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs	Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs	Avg Pressure: mmHg - Area: inches2

	SIDE SLEEPER
LARGE PEOPLE Largest 10% of adults 210-273 lbs	Avg Pressure: mmHg - Area: inches2
AVERAGE PEOPLE Middle 50% of adults 134-218 lbs	Avg Pressure: mmHg - Area: inches2
PETITE PEOPLE Smallest 10% of adults 111-135 lbs	Avg Pressure: mmHg - Area: inches2

The Main Beautyrest Black K-Class Ultra Plush Pillowtop Features in Detail

Warranty

The K-Class Ultra Plush Pillowtop mattress has a 10-year warranty against factory defects.

Beautyrest Black K-Class FAQs

1. What is new to the Beautyrest Black K-Class Ultra Plush Pillowtop mattress?
   

   The new models use SurfaceTouch Gel Memory Foam as well as Alpaca, Cashmere, and Silk Fibers in the comfort layers.  

2. How does the 120-night trial work?

   With the 120-night trial, try the mattress for at least 30 days, and up to 120 nights. If you're not satisfied, you can replace it. All you'll have to pay is a $139 processing fee, shipping and delivery are covered!

3. Do I need to flip my Beautyrest Black K-Class mattress?

   No, Beautyrest Black beds are built from the ground up and are not designed to be flipped. This has become the new standard for mattresses today. It often means more comfort materials can be packed in.

Beautyrest Black K-Class Ultra Plush Pillowtop Specifications:

About the Author Steven Bieber

Steven is a content writer who recently broke into the mattress industry. In his free time, he enjoys watching football and listening to music.