Find the Right Bed
Comparison
Discounts
Reviews
Mattress 101
Sorry, the email address or password you entered is incorrect.

Forgot password?

Login successful.

Your screen name will look like: Your N from City, ST

VERIFY YOUR ACCOUNT

We just sent an email to

Open the message and click the link to access your account.

  • Expert Reviews
  • Expert Reviews
  • Customer Reviews
  • Popular Online Brands
  • Popular Store Brands
  • All Brands
  • Write a Review
  • Write Review
Close

Beautyrest Harmony Lux Diamond Medium Pillowtop

Discontinued Product

Replacement Options
Beautyrest Harmony Lux Diamond Medium Pillowtop Alternatives

Looking to replace your Lux Diamond Medium Pillowtop mattress? This model has been discontinued and is no longer available, but here are 5 current models that are very similar – in terms of their materials & construction, comfort & feel, back support, and other performance characteristics we measure. Compare them side by side to determine which one is best for you.


$3,699
Queen Size
Shop this Bed

Compare These Products
Beautyrest Harmony Lux Diamond Medium Pillowtop vs. Other Beds

Compare the Beautyrest Harmony Lux Diamond Medium Pillowtop mattress side by side with other Beautyrest models, or with mattresses from other brands.

GoodBed Expert Review
Our Take on Beautyrest Harmony Lux Diamond Medium Pillowtop

Founder of GoodBed
Michael Magnuson

Founder of GoodBed, Leading Mattress Expert

Bottom Line - Here was our assessment of this product.
Bottom line best icon BEST if you
  • Want a medium-firm mattress (i.e., just a little firmer than average)
  • Are either a back or stomach sleeper (though this mattress can also be good for side sleepers who prioritize firm support over extra pressure relief)
  • Are easily disturbed by other movements in the bed (motion isolation is excellent)
  • Prefer a slightly above average amount of 'memory feel'
  • Enjoy sleeping just a bit more 'in' your mattress than 'on' it
  • Like a little bounce in your mattress, but not much
Bottom line not ideal icon NOT IDEAL if you
  • Have a strong tendency to sleep hot (temperature regulation is pretty good, but not the best)
  • Regularly sit or sleep along the edge of your bed (edge support is good, but not the best)
  • Tend to have difficulty changing positions during the night (though ease of repositioning is still OK)
  • Want a natural or organic mattress

GoodBed Ratings

Our Measurements and Scores for the Beautyrest Harmony Lux Diamond Medium Pillowtop
These attributes are not 'better' or 'worse' — they should be judged solely on your personal preference.
Softness
Medium-Firm (4)
Cushioning
Depth
Slightly Deep (6)
Memory Feel
Medium-High (6)
Bounce
Medium (5)
Durability
Good (7)
Warranty
10-year
warranty
Quality
Good (7)
Spinal alignment depends on "fit" between your body and the mattress.
Lighter Weight
(<150 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Good (7)
Very Good (8)
Excellent (9)
Average Weight
(150-200 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Very Good (8)
Very Good (8)
Very Good (8)
Above Average
Weight
(200-250 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Very Good (8)
Very Good (8)
Very Good (8)
Heavier Weight
(>250 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Excellent (9)
Very Good (8)
Good (7)
Pressure relief depends on "fit" between your body and the mattress, and is most important for side sleepers.
Lighter Weight
(<150 lb.)
Typical Curves
Extra Curvy
Pretty Good (6)
Pretty Good (6)
Average Weight
(150-200 lb.)
Typical Curves
Extra Curvy
Good (7)
Good (7)
Above Average
Weight
(200-250 lb.)
Typical Curves
Extra Curvy
Very Good (8)
Very Good (8)
Heavier Weight
(>250 lb.)
Typical Curves
Extra Curvy
Very Good (8)
Very Good (8)
These attributes can be 'better' or 'worse' — but may or may not be a priority for you.
Motion
Isolation
Excellent (9)
Sleeps Cool
Pretty Good (6)
Edge Support
Good (7)
Reposition
Ease
OK (5)
Green
Features
Fair (4)
Adjustable
Base
Suitability
Good (7)

Find the Right Mattress

Not sure which bed is best for you? We can assess your needs. Let’s start...What is your preferred sleep position?

“The GoodBed Quiz is by far the best starting point for any mattress shopper.” – Katherine P. in Chicago, IL

Answer a few questions to see the best options for you based on the most advanced mattress matching algorithm on the internet.

Frequently Asked Questions
Beautyrest Harmony Lux Diamond Medium Pillowtop

  • In our evaluation of the Beautyrest Harmony Lux Diamond Medium Pillowtop mattress, we found it to be a Medium-Firm (4) on the GoodBed rating scale (1= firmest, 9 = softest).
  • Yes, the Beautyrest Harmony Lux Diamond Medium Pillowtop mattress is adjustable base compatible. This means it is designed to be used on an adjustable base without incurring damage or voiding the warranty. In our review of this mattress, we tested it on an adjustable base to look for any adverse effects as the head and foot are elevated, and to see how well it conforms to the contours of the base both with and without the weight of a sleeper. Overall, we found the Lux Diamond Medium Pillowtop to have good adjustable base compatibility.

Expert Q&A

See questions from other mattress buyers

Additional Information

General Description

Cover:

  • Seaqual Sustainable Fabric, utilizes recovered plastics from the ocean to create a durable and luxurious fabric.

Comfort Layers:

  • InfiniCool Lux, provides a cool sleep environment.
  • SurfaceTouch Gel Memory Foam, deliver incredible pressure relief.
  • RightTemp Wave Foam
  • Plush Comfort Foam
  • Dynamic Response Memory Foam
  • Micro Diamond Memory Foam, designed to conduct heat away from your body and keep you cool all night long.
  • Medium Comfort Foam

Support System:

  • Powered by T2 Pocketed Coil Technology, provides additional support where you need it most.

 


Mattress Specifications:

  • Cover Details: Seaqual Sustainable Fabric, utilizes recovered plastics from the ocean to create a durable and luxurious fabric.
  • Comfort Layer Details: SurfaceTouch Gel Memory Foam, deliver incredible pressure relief.
  • Support Layer Details: T2 Pocketed Coil Technology, provides additional support where you need it most.

Warranty

  • Length: 10-year warranty.
  • Indentation coverage: 1.5" and deeper.

About This Model

Status Discontinued
Line Beautyrest Harmony Lux (2020-2023)
Collection Beautyrest Harmony Lux Diamond
Comfort Level Medium-Firm
Surface Type Pillow Top
Support Type Innerspring
Build Details
  • No-Flip
  • Works with an adjustable base
  • Mattress Thickness: 17.25"

Corrections

Have an update or correction to our information about Beautyrest Harmony Lux Diamond Medium Pillowtop? If so, please take a moment to suggest an edit.

Best Discounts + Cash Back

Did you know? GoodBed is the only mattress shopping website that shares our referral fees with you. This means you get free Cash Back from us – on top of the discounts from the brand. Check out popular offers below, or search across all online mattress deals.

Ready to find your mattress?

Take the GoodBed Match Quiz

“The GoodBed Quiz is by far the best starting point for any mattress shopper.” – Katherine P. in Chicago, IL