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Spa Sensations by Zinus
Spa Sensations Serenity 8" Memory Foam
Walmart's best-selling mattress with 27,000+ reviews
We publish a number only when supported by documented measurements. This review evaluates published specifications and policies.
27,853 customer reviews on SpaSensationsbyZinus's website
Queen price on record
Warranty
10 years
Trial Period
90 days (Walmart)
Shipping
Free shipping
Height
8 inches
Our verdict
The Spa Sensations Serenity by Zinus is Walmart's undisputed best-selling mattress, with over 27,000 reviews and a 4.4-star average. Made by Zinus — one of the world's largest mattress manufacturers — it combines 2 inches of green tea-infused memory foam over 6 inches of high-density base foam. At $180 for a queen, it's one of the most affordable memory foam mattresses you can buy from a major retailer. The green tea and ActivCharcoal infusions help with freshness, and the CertiPUR-US certification ensures the foams meet safety and emission standards. It ships compressed in Zinus's WonderBox (23% smaller than typical mattress boxes) and supports up to 500 lbs. Available in 6", 8", 10", and 12" thicknesses across all standard sizes.
Verdict & testing evidence
Research Evaluation- Evidence type
- Research Evaluation
- In-person experience
- Not established for this exact model
- Published firmness
- 5.5/10 in our product record (not a lab result)
- Lab performance data
- No documented lab measurements
Product-gallery photos and manufacturer specifications are not independent test measurements. We do not assign numerical cooling, motion, pressure or durability scores without documented evidence.Editorial policy.
Spa Sensations Serenity 8" Memory Foam Overview
The Spa Sensations Serenity by Zinus is Walmart's #1 best-selling mattress with 27,000+ reviews. At $180 for a queen, this green tea-infused memory foam mattress offers exceptional value for guest rooms, kids' beds, and budget-conscious shoppers, though heavier sleepers and those needing cooling should consider alternatives.
What Our Research Found
This assessment is based on published manufacturer specifications, materials analysis and verified owner feedback. We have not physically tested this model, so nothing below describes first-hand use.
With nearly 28,000 reviews on Walmart.com, the Spa Sensations Serenity by Zinus is arguably the most-reviewed mattress in America. That volume of feedback gives us a remarkably clear picture: it's an excellent value for the price, but you need to set expectations accordingly.
This is typical for budget memory foam at this thickness. Lighter sleepers under 150 lbs will get significantly more longevity.
The green tea and charcoal infusions genuinely reduce off-gassing.
Motion isolation was the standout metric. If you're a light sleeper sharing a bed, this is a genuine benefit.
The biggest weakness is heat retention. Without any gel or phase-change cooling technology, the dense memory foam traps body heat. Hot sleepers should seriously consider adding a cooling topper ($30-50) or stepping up to the Zinus Green Tea model with gel memory foam.
Bottom line: for guest rooms, kids' beds, college dorms, or as a temporary mattress while saving for something better, the Spa Sensations is hard to beat at $180. Just don't expect it to last 7-10 years like a mid-range mattress — budget for replacement every 3-5 years.
Performance assessment
How we score (1–10 rubric) →Evaluated through published specifications, manufacturer information and materials analysis. Not physically tested in our lab. We do not publish cooling, motion-isolation, edge-support, pressure-relief, response, durability or off-gassing scores for the Spa Sensations Serenity 8" Memory Foam until the full protocol is complete. Everything below — construction, materials, firmness, pricing, trial and warranty — is verified specification and editorial analysis.
Research evaluation — full lab score pending
The Spa Sensations Serenity 8" Memory Foam has been evaluated from published specifications, manufacturer data, materials analysis and verified owner feedback. It has not been through our lab. Rather than publish estimated numbers, we leave this table empty and publish no Sleep Sage performance scores until the measurements exist.
Firmness Level
Medium Soft (5.5/10)
What We Love
- Incredibly affordable — $180 for a queen
- Over 27,000 reviews with 4.4-star average
- Green tea and charcoal infused for freshness
- CertiPUR-US certified foams
- 500 lb weight capacity
- Free 90-day returns through Walmart
- Available in 4 thickness options (6", 8", 10", 12")
- Compact WonderBox shipping reduces carbon footprint
What Could Be Better
- Only 8 inches — limited support for heavier sleepers
- All-foam means minimal edge support
- May sleep warm — no gel cooling layer
- Not as durable as mid-range options — expect 3-5 year lifespan
- Medium feel may be too soft for stomach sleepers
Best For
- Extreme budget shoppers under $200
- Guest rooms and spare bedrooms
- Kids and teens needing an affordable upgrade
- College students furnishing a dorm or apartment
- RVs and vacation homes
- Walmart shoppers who want easy in-store returns
Not Ideal For
- Primary mattress for adults over 200 lbs
- Hot sleepers needing active cooling
- Those who want long-term durability (5+ years)
- Strict stomach sleepers needing firm support
- Couples who use the full bed surface including edges
Mattress Construction
Knit Jacquard Cover
Soft knit fabric cover for breathability
Green Tea Memory Foam
2" of green tea and ActivCharcoal-infused memory foam for pressure relief and freshness
High-Density Base Foam
6" high-density support foam foundation for stability and durability
Sleep Position Analysis
Side Sleepers
At 5.5/10 firmness, the Spa Sensations Serenity 8" Memory Foam may be worth trying for side sleepers who prefer a medium surface. Body shape, shoulder width and individual preferences can change how the same mattress feels.
Back Sleepers
The Spa Sensations Serenity 8" Memory Foam's listed firmness of 5.5/10 may suit back sleepers seeking a medium-to-firm surface. Spinal alignment and hip support have not been objectively measured for this model unless documented test results appear above.
Stomach Sleepers
At 5.5/10 firmness, the Spa Sensations Serenity 8" Memory Foam may be too soft for stomach sleepers. Stomach sleepers may want to compare a firmer model, especially if they notice uncomfortable hip sinkage.
Combination Sleepers
The Spa Sensations Serenity 8" Memory Foam's memory foam construction contours to each sleep position but may resist quick position changes. Slower-responding foam can make combination sleepers feel briefly "stuck" when transitioning.
Which Spa Sensations Serenity 8" Memory Foam Model Should You Buy?
The Serenity 8 is Spa Sensations' (Zinus's Walmart line) budget memory-foam bed — green-tea-infused foam at around $180 in a queen, sold where America actually shops for guest-room mattresses.
| Model | Firmness | Best for | Queen |
|---|---|---|---|
| Serenity 8" | 5.5/10 | Guest rooms, kids, dormsThe Walmart volume seller. Occasional-use champion. | $180 |
| Serenity 10" | 5.5/10 | Nightly budget useTwo more inches — the minimum for nightly adults. | $220 |
| Serenity 12" | 5/10 | Side sleepersThe deepest build in the line. | $260 |
Spa Sensations Serenity 8" Memory Foam Prices by Size
Walmart pricing is stable with Rollback events. The prices below are typical shelf prices; in-store and online match.
| Size | Dimensions | List price | Typical sale price |
|---|---|---|---|
| Twin | 38" x 75" | $139 | $119 |
| Full | 53" x 75" | $189 | $149 |
| Queen | 60" x 80" | $248 | $180 |
| King | 76" x 80" | $299 | $229 |
Prices were read from the brand's own site when this review was last updated and change with promotions, so confirm the price at checkout. See our current mattress deals hub for live discounts.
Spa Sensations Serenity 8" Memory Foam vs. the Alternatives
Spa Sensations Serenity 8" Memory Foam vs. Zinus Green Tea 8"
$299 queenChoose the Spa Sensations Serenity 8" Memory Foam if: Walmart pickup today beats Amazon shipping.
Choose the Zinus Green Tea 8" if: You want the parent brand's wider size range.
Read the full Spa Sensations Serenity 8" Memory Foam vs. Zinus Green Tea 8" comparison →Spa Sensations Serenity 8" Memory Foam vs. NapQueen Anula
$119 queenChoose the Spa Sensations Serenity 8" Memory Foam if: You want Walmart's return convenience.
Choose the NapQueen Anula if: You want the absolute lowest price on Amazon.
Read the full Spa Sensations Serenity 8" Memory Foam vs. NapQueen Anula comparison →Spa Sensations Serenity 8" Memory Foam vs. Lucid 8-Inch Gel
$249 queenChoose the Spa Sensations Serenity 8" Memory Foam if: You prefer the green-tea foam and Walmart availability.
Choose the Lucid 8-Inch Gel if: You want gel foam with more firmness options.
Read the full Spa Sensations Serenity 8" Memory Foam vs. Lucid 8-Inch Gel comparison →The Zinus family tree
Spa Sensations is Zinus selling under a Walmart-exclusive badge — same factories, same green-tea-infused foam formula, slightly different covers and model names so the channels don't cannibalize each other. If you know the Zinus Green Tea, you know this mattress.
That's a good thing: Zinus has shipped more budget foam mattresses than anyone, and the quality-control lessons are baked in. Out-of-box consistency at this price is better than no-name Amazon brands.
The 8-inch rule
Eight inches of low-density foam is fine for bodies under 150 pounds and for occasional use — guest rooms, kids, dorms, rentals. Adults sleeping nightly, especially over 180 pounds, will compress through the comfort layer within a year.
If this is your bed rather than your guest bed, buy the deeper one.
Spa Sensations Serenity 8" Memory Foam Buyer Questions
What People Cross-Shop Against the Spa Sensations Serenity 8" Memory Foam
The five beds closest to the Spa Sensations Serenity 8" Memory Foam on price, firmness and build in our catalog — and the one thing each does differently. These are research evaluations, so no numeric ratings are shown (why).
Novilla Vitality Memory Foam is a nearby alternative by price, firmness and construction. Compare the verified specifications, policies and evaluation method before choosing.
NapQueen Bamboo Charcoal Memory Foam is a nearby alternative by price, firmness and construction. Compare the verified specifications, policies and evaluation method before choosing.
Lucid 10-Inch Memory Foam is a nearby alternative by price, firmness and construction. Compare the verified specifications, policies and evaluation method before choosing.
Linenspa 10-Inch Gel Memory Foam Hybrid is a nearby alternative by price, firmness and construction. Compare the verified specifications, policies and evaluation method before choosing.
Zinus Green Tea Memory Foam is a nearby alternative by price, firmness and construction. Compare the verified specifications, policies and evaluation method before choosing.
Want a different pairing? Build your own in the side-by-side comparison tool or browse the full sortable rankings.
Spa Sensations Serenity 8" Memory Foam Current Price
Queen pricing. List price $248, currently advertised at $180 (27% off).
Frequently Asked Questions
Common Themes in Owner Reviews
27,853 customer reviews on SpaSensationsbyZinus's website. Owner feedback summarized from published customer reviews on SpaSensationsbyZinus's website and major retailer listings. SleepSage cannot verify individual purchases, so no purchase-verified badge is shown. Common themes in owner reviews of the Spa Sensations Serenity 8" Memory Foam line up with the points below. We summarise recurring praise and complaints rather than republishing individual reviews, reviewer names, dates or helpful-vote counts, because those belong to the retailer and we cannot verify them here.
Praised most often
- Incredibly affordable — $180 for a queen
- Over 27,000 reviews with 4.4-star average
- Green tea and charcoal infused for freshness
- CertiPUR-US certified foams
- 500 lb weight capacity
Most common complaints
- Only 8 inches — limited support for heavier sleepers
- All-foam means minimal edge support
- May sleep warm — no gel cooling layer
- Not as durable as mid-range options — expect 3-5 year lifespan
- Medium feel may be too soft for stomach sleepers
Verified owner reviews written by Sleep Sage readers appear separately and are attributed to real accounts.
Quick Specs
- Type
- Memory Foam
- Firmness
- Medium Soft
- Height
- 8 inches
- Trial
- 90 days (Walmart)
- Warranty
- 10 years
How We Researched the Spa Sensations Serenity 8" Memory Foam
This is a research evaluation. We have not put the Spa Sensations Serenity 8" Memory Foam through our physical lab protocol, so this page describes verified construction, manufacturer specifications, policies, comparative analysis and published owner feedback.
Research Evaluation: This mattress has not completed our physical lab testing protocol, and we publish no Sleep Sage lab measurements for it. Our evaluation is based on verified construction, manufacturer specifications, policies, comparative analysis and available owner feedback.
Construction & Materials Review
We document the mattress's published layer construction, materials, densities and cover fabrics from manufacturer specifications and supporting documentation.
Specification & Certification Verification
We check published specifications, certifications and material claims against the manufacturer's own documentation, and flag anything we cannot confirm.
Policy & Price Verification
Trial length, return terms, warranty coverage, shipping and current pricing are recorded from the retailer and re-checked when we update the review.
Owner Feedback Synthesis
We summarise recurring themes in published owner feedback rather than republishing individual reviews, names or vote counts.
Comparative Analysis
We position the mattress against comparable models we have measured, using construction similarities — never by assigning it measurements it does not have.
What We Have Not Done
No documented pressure mapping, thermal logging, motion-transfer, edge-deflection or durability measurements are available for this unit. We publish no lab scores until they are.
Editorial transparency: Ben Trapskin owns Yawnder, a mattress retailer, and Sleep Sage may earn commissions from qualifying purchases. Retail and affiliate relationships do not substitute for independent measurement evidence. We identify which observations are firsthand and which claims come from manufacturer sources. Read our full editorial policy and detailed testing methodology.
Owner Reviews
Real opinions from Spa Sensations Serenity 8" Memory Foam owners. 0 reviews
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More on Spa Sensations by Zinus and its closest rivals
Brand-level context for this review: Spa Sensations by Zinus's construction philosophy, pricing bands, trial and warranty terms, plus the competitors we cross-shopped it against.
- Zinus review & brand guideThe budget benchmark — foam and hybrid mattresses that start under $300.Queen $249–$699 · Varies by retailer; typically 30–100 nights
- Siena review & brand guideResident's entry-price memory foam bed, built for value buyers.Queen $399–$699 · 180-night trial
- Lucid review & brand guideHigh-volume value foam and hybrid mattresses and toppers.Queen $199–$699 · Marketplace return window, typically 30 days
- Tuft & Needle review & brand guideThe original value bed-in-a-box, now part of Serta Simmons.Queen $695–$1,495 · 100-night trial
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