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Qube Serenity

GoodBed Expert Review
Our Take on Qube Serenity

Founder of GoodBed
Michael Magnuson

Founder of GoodBed, Leading Mattress Expert

Bottom Line - Is the Qube Serenity the right mattress for you?
Bottom line best icon BEST if you
  • Want a medium-firm mattress (i.e., just a little firmer than average)
  • Are mainly a back sleeper (though this mattress can also be good for side sleepers who prioritize firm support over extra pressure relief)
  • Are seeking a mattress with excellent materials and construction
  • Regularly sit or sleep along the edge of your bed (edge support is excellent)
  • Want a mattress that helps you stay cool while you sleep
  • Would like a mattress that performs very well when used with an adjustable base
  • Prefer an average amount of 'memory feel'
  • Enjoy sleeping just a bit more 'in' your mattress than 'on' it
Bottom line not ideal icon NOT IDEAL if you
  • Are a stomach sleeper, especially if you weigh more than 250 lb
  • Are allergic to latex
  • Don't like any bounce in your mattress
  • Want a natural or organic mattress (though this mattress is still pretty good in terms of avoiding harmful chemicals)

Qube Mattress Giveaway

Enter for a chance to win a FREE Qube mattress in our drawing on June 15, 2026. Good luck!

How does it work?

Qube Sleep, an innovative new mattress company, has graciously sponsored this contest by giving away one (1) of their Qube Collection mattresses to a lucky GoodBed user.

Entering the Qube mattress giveaway is easy.

  • No purchase necessary. U.S. residents only, 21+.
  • Enter the contest by taking any of the simple actions shown – some actions count for more than one entry.
  • Enter in multiple ways – each entry increases your chances.
  • If you buy a Qube Collection mattress during the contest entry period (5/19/26 thru 6/14/26) and then win the contest, you can choose a full refund as your prize instead of getting another mattress.
  • Winner will be selected in a random drawing on 6/15/26. He/she will be contacted by email and announced on Facebook (Like this page to be notified). Winner will have 24 hours to claim the prize before a new winner is selected.
  • Grand prize is one (1) free Qube Collection (IntelliQube excluded) mattress in winner's preferred size (TwinXL, Full, Queen, King or Cal King), a value of up to $4,799 in Queen, or $5,999 in Cal King.

Best of luck!

GoodBed Ratings

Our Measurements and Scores for the Qube Serenity
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 (5)
Bounce
Medium-High (6)
Durability
Excellent (9)
Warranty
20-year
warranty
Quality
Excellent (9)
Spinal alignment depends on "fit" between your body and the mattress.
Lighter Weight
(<150 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Very Good (8)
Excellent (9)
Very Good (8)
Average Weight
(150-200 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Very Good (8)
Very Good (8)
Good (7)
Above Average
Weight
(200-250 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Good (7)
Very Good (8)
Pretty Good (6)
Heavier Weight
(>250 lb.)
Side Sleeper
Back Sleeper
Stomach Sleeper
Good (7)
Good (7)
OK (5)
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
Good (7)
Good (7)
Average Weight
(150-200 lb.)
Typical Curves
Extra Curvy
Good (7)
Good (7)
Above Average
Weight
(200-250 lb.)
Typical Curves
Extra Curvy
Good (7)
Good (7)
Heavier Weight
(>250 lb.)
Typical Curves
Extra Curvy
Good (7)
Good (7)
These attributes can be 'better' or 'worse' — but may or may not be a priority for you.
Motion
Isolation
Good (7)
Sleeps Cool
Very Good (8)
Edge Support
Excellent (9)
Reposition
Ease
Good (7)
Green
Features
Pretty Good (6)
Adjustable
Base
Suitability
Very Good (8)

Materials & Construction

Layer Details
Cover Stretch knit ("w/ cool-to-touch-surface")
Comfort Layers
  • 1″ Talalay latex
  • 1.75″ gel + HD memory foam ("QUBE GelShell Support System w/ 1,116 QUBEs")
  • 1″ Talalay latex
Transition Layers 2″ poly foam ("Medium Response Foam")
Support Layers
  • 8″ pocket springs (five-zone, 748 count, 13.5 gauge) w/ foam encasement edge support
  • 1″ poly foam ("base foam")
Total Thickness 14.75''

Compare These Products
Qube Serenity vs. Other Beds

Compare the Qube Serenity mattress side by side with other Qube Sleep models, or with mattresses from other brands.

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
Qube Serenity

  • In our evaluation of the Qube Serenity mattress, we found it to be a Medium-Firm (4) on the GoodBed rating scale (1= firmest, 9 = softest).
  • Yes, the Qube Serenity 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 Serenity to have very good adjustable base compatibility.
    • Length: 20-year warranty.
    • Indentation coverage: 0.75" and deeper.
    • Proration: 20 years of full ("non-prorated") replacement coverage.

Expert Q&A

See questions from other mattress buyers

Other Models from Qube Sleep

Additional Information

General Description

Comfort Layers

  • Cooling Cover
  • Benefit: Provides a cool-to-the-touch surface for a comfortable sleep throughout the night.
  • 1″ Talalay Latex
    Benefit: Gently cradles your body, relieving pressure points and providing soft, supportive comfort.
  • 1.75″ QUBE™ GelShell™ Support System (266 QUBEs):
    Benefit: Offers personalized comfort with over 1,100 independent Qubes that move individually to support your body and prevent motion transfer.
  • 1″ Talalay Latex
    Benefit: Gently cradles your body, relieving pressure points and providing soft, supportive comfort.
  • 2″ Medium Response Foam
    Benefit: Adds extra cushioning and support, ensuring a comfortable sleeping surface.

Support Layers

  • 748 Pocketed, Tempered Steel Coils (13.5 Ga)
    Benefit: Provides durable, long-lasting support that adjusts to your movements, enhancing comfort and minimizing motion transfer.
  • Five-Zone Construction
    Benefit: Offers targeted support with smaller coils in firmer zones for optimal spinal alignment and pressure relief.
  • Foam Encased Edge
    Benefit: Reinforces the mattress edge, increasing sleep surface area and preventing sagging over time.
  • 1″ Base Foam
    Benefit: Stabilizes the mattress, providing a solid foundation for long-term durability and consistent comfort.

Special Features

  • Patented QUBE™ GelShell™ Technology
    Benefit: Over 1,100 individual QUBEs provide personalized support and airflow, keeping you cool while preventing motion transfer.
  • 3D Airflow Channels
    Benefit: The unique design allows warm air to escape and cool air to enter, ensuring a breathable and temperature-regulated sleep.
  • Five-Zone Coil System
    Benefit: Enhances ergonomic support by distributing weight evenly and reducing pressure points, promoting healthier sleep posture.
  • 20-Year Warranty
    Benefit: Offers peace of mind with long-lasting performance and coverage, ensuring years of reliable comfort and support.
  • Made in the Pacific Northwest
    Benefit: Locally manufactured with precision, quality, and pride.

Warranty

  • Length: 20-year warranty.
  • Indentation coverage: 0.75" and deeper.
  • Proration: 20 years of full ("non-prorated") replacement coverage.

About This Model

Status Active (released 2026)
Manufacturer Qube Sleep
Line Qube
Collection Qube Hybrid
Comfort Level Medium-Firm
Surface Type Unquilted
Support Type Innerspring
Build Details
  • No-Flip
  • Works with an adjustable base
  • Mattress Thickness: 14.75"

Corrections

Have an update or correction to our information about Qube Serenity? If so, please take a moment to suggest an edit.

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