Beautyrest Harmony Lux Hybrid Seabrook Island Firm
GoodBed Expert Review
Our Take on Beautyrest Harmony Lux Hybrid Seabrook Island Firm

Founder of GoodBed, Leading Mattress Expert
- Want a firm mattress
- Are either a back or stomach sleeper, especially if you weigh 200 lb or less
- Often sit or sleep along the edge of your bed (edge support is very good)
- Would like a mattress that performs very well when used with an adjustable base
- Prefer an average amount of 'memory feel'
- Enjoy a happy medium between sleeping 'on' your mattress versus 'in' it
- Like a little bounce in your mattress, but not much
- Are a side sleeper (though this mattress can be good for side sleepers who prioritize firm support over extra pressure relief)
- Have a strong tendency to sleep hot (temperature regulation is pretty good, but not the best)
- Can be easily disturbed by other movements in the bed (though motion isolation is still pretty good)
- Tend to have difficulty changing positions during the night (though ease of repositioning is still pretty good)
- Want a natural or organic mattress (though this mattress is still OK in terms of avoiding harmful chemicals)
Beautyrest Harmony Lux Hybrid Mattresses Overview
GoodBed Editorial
Our in-depth comparison and evaluation of the Beautyrest Harmony Lux Hybrid mattresses, with observations on comfort/feel, bounce, edge support and more.
See our full reviewMaterials & Construction
Cover | Stretch knit ("InfiniCool LUX w/ plant-based cooling technologies") |
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Comfort Layers |
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Transition Layers | 1″ poly foam ("Firm Comfort Foam") |
Support Layers |
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Total Thickness | 13'' |
Compare These Products
Beautyrest Harmony Lux Hybrid Seabrook Island Firm vs. Other Beds
Compare the Beautyrest Harmony Lux Hybrid Seabrook Island Firm mattress side by side with other Beautyrest models, or with mattresses from other brands.
Where to Buy
Beautyrest Harmony Lux Hybrid Seabrook Island Firm

Beautyrest Online Seller
- Free delivery
- 100-day return policy
- Financing available
Frequently Asked Questions
Beautyrest Harmony Lux Hybrid Seabrook Island Firm
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In our evaluation of the Beautyrest Harmony Lux Hybrid Seabrook Island Firm mattress, we found it to be a Firm (3) on the GoodBed rating scale (1= firmest, 9 = softest).
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Mattress matching is highly personal. This is why GoodBed refuses to publish bogus "best mattress" lists and instead created an advanced mattress matching tool called the GoodBed Quiz. This quiz can assess your requirements in just a few minutes, and then calculate your personal Match Score for the Beautyrest Harmony Lux Hybrid Seabrook Island Firm mattress, along with any of the other 800+ mattresses that we've evaluated.
To see your Match Score for the Beautyrest Harmony Lux Hybrid Seabrook Island Firm, simply use this link to take the GoodBed Quiz. Your Match Score for this mattress will be shown at the top of your quiz results, and will include a detailed explanation of how it matches up with your personal mattress requirements. Each Match Score is based on over 50 different Mattress DNA™ attributes that we measure through our proprietary mattress testing framework.
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Yes, the Beautyrest Harmony Lux Hybrid Seabrook Island Firm 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 Seabrook Island Firm to have very good adjustable base compatibility.
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Here are the in-home trial details for mattresses purchased from the Beautyrest website:
- Policy: Comfort Guarantee -- Mattresses can be returned for refund for up to 100 days
- Fees: Returns refunded in full.
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Here are the delivery terms for mattresses purchased from the Beautyrest website:
- Policy: Delivery available - Free with any mattress purchase
- Set-up: Set-up provided free with delivery
- Removal: Removal of old mattress provided free with delivery
- Timing: After placing your order on Beautyrest.com, your mattress will arrive within 4-14 days.
- Notes: FREE white glove delivery with every mattress.
Expert Q&A
See questions from other mattress buyersOther Models from Beautyrest
Additional Information
General Description
The Lux Hybrid Experience
- Our Harmony Lux Hybrid models are crafted with a smooth, body-contouring memory foam top perfect for anyone who loves the feeling of being cradled by their mattress. Our Ocean View Island models feature premium cooling while our Seabrook Island models feature maximum cooling and memory foam support.
Lush Sleep Surface
- Lush sleep surface made with up to 100 plastic bottles diverted from the ocean*.
Cooling Comfort
- InfiniCool Lux - Two layers of active cooling deliver comfortable sleep through plant-based cooling technology + Bio-Charcoal cooling foam.
Advanced Pressure Relief
- Beautyrest ActiveResponse Memory Foam - Premium memory foam with contouring comfort for your body to help alleviate aches and pains caused by pressure.
Consistent Support and Advanced Motion Isolation
- Precision Support System - Consistent, head-to-toe support across the entire mattress and advanced motion isolation with 40% more support coils than Harmony Hybrid models**.
*Based on queen model
**Harmony Lux Hybrid includes double-stranded pocketed coils
Proudly Assembled in the USA.
Warranty
- Length: 10-year warranty.
- Indentation coverage: 0.75" and deeper.
- Other Notes: Warranty Code P.
About This Model
Status | Active (released 2023) |
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Manufacturer | Beautyrest |
Line | Beautyrest Harmony Lux |
Collection | Beautyrest Harmony Lux Hybrid |
Comfort Level | Firm |
Surface Type | Unquilted |
Support Type | Innerspring |
Build Details |
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Editor's Note(s)
- On the Beautyrest website, this model is called the Beautyrest Harmony Lux Hybrid Exceptional Seabrook Island Firm.
Corrections
Have an update or correction to our information about Beautyrest Harmony Lux Hybrid Seabrook Island Firm? If so, please take a moment to suggest an edit.