Beautyrest Black L-Class Medium Mattress Review

Updated November 20, 2023

Man relaxing on a Beautyrest Black L Class Medium mattress

The Beautyrest Black L-Class Medium is one of 4 models in the L-Class. It's one of the lowest-priced Beautyrest Black mattresses, much more affordable than their top models. We've received and reviewed the mattress and we're sharing our feedback with you below:

Comfort Scale Rating

The L-Class Medium mattress has a medium-firm feel that we rate 4 on our 10 point Comfort Scale (a 1 is hard, 10 is softest.)  If you're looking for a firmer feeling of comfort that still feels pretty neutral you should consider this model. This level of softness is acceptable to most people, but if you like softer then you should consider other models.

Expert Video Review

Here’s our quick L-Class Medium Video Review. It highlights the features, benefits, and our impression of how it performs.


Pros & Cons

  • Premium materials like gel memory foam and construction
  • Excellent support and contouring
  • Medium comfort makes a great 
  • Minimal motion transfer thanks to the T3 pocketed coil technology 
  • Trusted brand
  • The premium price
  • No twin size

View Bed

Pressure Test Results

This is a new model so we haven't gotten a chance to pressure test it yet. We have the previous model's results displayed, which we expect to be fairly similar. There should be some improvement in the newer model though. 

We will update this review with the updated results when we have them. They are a good indication of the type of support and pressure relief provided by the mattress.

Previous model pressure test results:

LARGE PEOPLELargest 10% of adults 210-273 lbs Large back sleeper heatmapAvg Pressure:   mmHg - Area:   inches2 Large side sleeper heatmapAvg Pressure:   mmHg - Area:   inches2
AVERAGE PEOPLEMiddle 50% of adults 134-218 lbs Average back sleeper heatmapAvg Pressure:   mmHg - Area:   inches2 Average side sleeper heatmapAvg Pressure:   mmHg - Area:   inches2
PETITE PEOPLESmallest 10% of adults 111-135 lbs Petite back sleeper heatmapAvg Pressure:   mmHg - Area:   inches2 Petite side sleeper heatmapAvg Pressure:   mmHg - Area:   inches2

The Main Beautyrest Black L-Class Medium Features in Detail

l-clall medium features

1. Antimicrobial Mattress Protection

Keeps mattress fresh and clean from odor-causing bacteria.

2. BlackICE 4.0 with Plant-Based Cooling Technology

Cooling materials just beneath the surface enhance heat dissipation which helps provide up to 18% more cooling power to keep you comfortable while you sleep.

3. AirFeel Foam

A soft, quality foam located at the surface, with an open cell structure that helps provide airflow, performance, and durability for the life of the mattress.

4. SurfaceTouch Gel Memory Foam

SurfaceTouch Gel Memory Foam is sewn into the quilt to work directly under the sleep surface to quickly unlock advanced pressure point relief from the moment you lie down.

5. Beautyrest Gel Memory Foam

Experience exceptional pressure relief with Beautyrest Gel Memory foam that contours to your body.

6. GelTouch Foam

A soft gel foam that helps provide comfort, support, airflow, and breathability.

7. T3 Pocketed Coil Technology

Exclusive to Beautyrest Black, this coil works to provide individualized back support, ease of movement, and pressure point relief throughout the night.

8. Energy Foam

This durable foam utilized below the coil unit helps create a supportive, durable foundation for the no-flip mattress design.

New Features

Compared to the old model, the new L-Class Medium mattress has added antimicrobial mattress protection, which helps protect the mattress from breaking down. Another addition is the SurfaceTouch Gel Memory Foam. This adds a bit more durability and conforming abilities.

Comfort Depth Video

We measured how far your hips and shoulders sink into the L-Class Medium mattress with different body types.

Aaron's Comfort View



Richard's Comfort View



Andrew's Comfort View



The L-Class Medium mattress has a 10-year warranty against factory defects.

Beautyrest Black L-Class FAQs

  1. 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!

  2. How is this L-Class mattress constructed?

    This mattress has a traditional innerspring mattress construction and is built upon a Zoned T3 Pocketed Coil design.

  3. Can I finance my Beautyrest Black L-Class mattress?

    Yes! You can finance a Beautyrest Black L-Class mattress on US-Mattress with Synchrony HOME, Affirm, or Paypal.


The Black L-Class Medium mattress is one of the lowest-priced Beautyrest Black mattresses so it will appeal to a lot of people wanting luxury features for under $3,000.  Its medium comfort will provide pressure-relieving capabilities and properly align your spine by supporting your back correctly.

The L-Class Medium has the three key features that are in all Black mattresses; the T3 coil, BlackICE with Plant-Based Cooling Technology, and BeautyEdge support.  Unique to the L-Class Medium bed is the 1-1/2" of AirFeel Foam layered under 1/2" Beautyrest Gel Memory Foam.  Coupling these two materials provides a contouring feel along with responsiveness to keep the mattress supportive and gives it the intended medium comfort feel.  Along with the added features in the lineup, it makes this an attractive model to consider. First and foremost the cooling nature of the BlackICE material helps to keep the mattress cooler so you can sleep better.  

If you're looking for a better bed and have the extra budget to go upmarket then this is a great one to look at. I do recommend it to people who want a neutral comfort with a touch of firmness that works for most people with excellent pressure relief. It's one of the better Beautyrest Black L Class models.

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Other Comfort Options

If you like the Beautyrest Black L-Class collection, but would rather have it in a different comfort level, check out the other options below.

Beautyrest Black L-Class Medium Specifications:

Product Name

Beautyrest Black L-Class Medium Mattress

Mattress Comfort
Comfort Scale Number
Coil Count
Coil Gauge
Comfort Padding Layers
  • 10 Year Manufacturer Warranty Included

Back Support System
Quilt Top of Mattress
Edge Support
Recommended For Side Sleepers Who Weigh
  • Coming Soon! 

Recommended For Back Sleepers Who Weigh
  • Coming Soon!

About the Author Steven Bieber

Features Steven, a white man with glasses, smiling

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