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Beautyrest Harmony Lux Hybrid Trilliant Firm Mattress Review

Updated January 28, 2022

In a tan and teal bedroom, the Trilliant Firm sits on a black box spring on a wooden bed frame.

The Beautyrest Harmony Lux Hybrid Trilliant Firm mattress is the firmest model from the Trilliant Series of this hybrid line. We're going to cover the specifications, features, pros/cons, and more.

Comfort Scale Rating

The Harmony Lux Hybrid Trilliant Firm mattress is a firmer feeling bed; we rate it a 3 on our 10 point Comfort Scale (a 1 is hard, 10 is softest). This comfort level is great for those who like a firm feel without it being too hard. For softer mattresses, try the medium and plush versions of this collection.

Expert Video Review

Here’s our quick Beautyrest Harmony Lux Hybrid Trilliant Series Firm Video Review. It highlights the features, benefits, and our impression.

Pros & Cons

PROS CONS
  • SEAQUAL technology in the cover uses recycled ocean debris
  • The InfiniCool Plus cooling technology excels at keeping you from getting too hot
  • Firm feel but still very pressure-relieving
  • Great for back sleepers
  • T2 Pocketed Coil Technology - gentle conforming support, motion transfer reducing, extra support where you need it most (center of mattress)
  • Quite firm, won't appeal to anyone who likes a softer mattress
  • Not good for side sleepers
  • Not for those on a budget

View Bed


Pressure Test Results

We will pressure test the Beautyrest Harmony Lux Hybrid Trilliant Firm mattress to see if the bed provides good support, pressure relief, and comfort for large, medium, and petite-sized people. Using models of each size we map their bodies while lying down on their side and back sleeping positions for a clear image of how well this mattress will perform for most people. (Learn how we test.) 

Until we are able to test this model, you can view an example of what the pressure results will look like when they become available.

Example Pressure Test Results


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

The Main Harmony Lux Hybrid Trilliant Firm Features in Detail

Harmony Lux Hybrid Trilliant Firm Cutaway Image

  1. 1. InfiniCool Max

    The cooling system in the quilt cover ensures you'll stay cool throughout the night, and it has a cool feel to the touch.

  2. 2. Micro Diamond Memory Foam

    Provides exceptional pressure relief and comfort, preventing tossing and turning, so you can get deeper sleep.

  3. 3. T2 Pocketed Coil Technology

    These dual-strand coils are located in the center of the mattress, providing more support right your body needs it the most. 

Warranty

The Harmony Lux Hybrid Trilliant Firm mattress has a 10-year warranty against factory defects.

Conclusion

The Harmony Lux Hybrid Trilliant Firm mattress from Beautyrest features Seaqual technology for better sustainability. This hybrid mattress has cooling qualities, plenty of pressure-relieving foams, and a pocketed coil support system. 

The gel memory foam is the trick to this mattress being both firm and extremely comfortable. It allows for that dense feel while also contouring to your body so there are no jolting pressure points. The pocketed coils also help, as they can pinpoint support right where you need it with no stiffness. They're also good for reducing the transfer of motion (great if you sleep with someone).

On the firmer side, the Trilliant Firm will likely not work well for side sleepers, who need a bit more cushioning. However, if you sleep on your back or stomach, it could be a match for you. Try the medium and plush versions if you need a softer mattress.

I think the Trilliant Firm will be a hit among back-sleepers! If you love a firm mattress, this hybrid is a wonderful high-end option that I recommend.


Buy Now

Beautyrest Harmony Lux Hybrid Trilliant Firm Specifications:

Product Name
Beautyrest Harmony Lux Hybrid Trilliant Firm Mattress
Queen Price

$1,899
Brand
Simmons
Mattress Comfort Firm
Comfort Scale Number
3
Coil Count
TBA
Coil Gauge
TBA
Height
14.5"
Comfort Padding Layers
  • 1" Micro Diamond Memory Foam
  • 1 1/2" EverGel HD Gel Memory Foam
  • 1/2" Dynamic Response Memory Foam
  • 2" Firm Comfort Foam
Warranty
  • 10-year warranty against manufacturer's defects
  • No Flip, No Rotate
  • Non-prorated
Back Support System
  • T2 Pocketed Coil Technology
  • Precision Support System
Quilt Top of Mattress
  • ContourFit Design
  • InfiniCool Max
Edge Support
Recommended For Side Sleepers Who Weigh
  • TBD
Recommended For Back Sleepers Who Weigh
  • TBD

View Bed


About The Author, Juliana

Juliana Huhta 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.