Key West Mattress’s Sleeptronic lineup focuses on coil-based support paired with cooling-focused ticking. Over several weeks, I rotated four popular models through regular sleep nights, reading and laptop time, and repeated edge-sitting drills to score support, pressure relief, cooling, motion isolation, responsiveness, edge support, and durability. Overall, these mattresses work best for back sleepers and many couples; very pressure-sensitive side sleepers may want a softer feel.
Table of Contents
- Product overview at a glance
- Testing team takeaways
- Key West Mattress comparison chart
- How we tested these mattresses
- Key West Mattress: our testing experience
- Compare performance scores across our picks
- How to choose a Key West Mattress
- Limitations to keep in mind
- Key West Mattress vs. alternatives
- Pro tips for Key West Mattress
- FAQs
Product overview at a glance
| Mattress | Overall Score | Pros | Cons | Ideal For | Price |
|---|---|---|---|---|---|
| Ocean Rest Eurotop | 4.1 | Cushioned surface feel; balanced coil support | Not as “locked-in” as the firmest beds | Combo sleepers who want a gentler top | $529.99 |
| Ocean Rest Firm | 4.2 | Strong, steady support; secure perimeter | Can feel too rigid on shoulders | Back sleepers; sleepers who hate sink | $529.99 |
| Edge 3000 XFIRM | 4.2 | Best edge confidence; crisp responsiveness | Least forgiving for pressure points | Heavier sleepers; stomach/back sleepers | $629.99 |
| Edge B-40 | 4.1 | Plush comfort with lumbar reinforcement | Plush top can compress at the edge | Couples wanting comfort plus stability | $629.99 |
Testing team takeaways
Across the four, Ocean Rest Eurotop and Edge B-40 felt the most shoulder-friendly while still keeping our hips supported through the night. Ocean Rest Firm and Edge 3000 XFIRM delivered the most “stay-flat” support and the most confidence when sitting or sleeping near the edge. Marcus (6'1", 230 lbs) preferred the firmer pair for their steadier feel and cooler surface, while Jenna and Ethan noticed the least partner disturbance on the plusher tops. None of these are cloud-soft mattresses.
Key West Mattress comparison chart
| Comparison item | Ocean Rest Eurotop | Ocean Rest Firm | Edge 3000 XFIRM | Edge B-40 |
|---|---|---|---|---|
| Mattress type | Innerspring | Innerspring | Innerspring | Innerspring |
| Top style | Pillow top | Tight top | Tight top | Tight top |
| Cooling cover or ticking | CoolTex ticking | CoolTex thermocool ticking | DeepFreeze ticking | CoolTex ticking |
| Notable comfort materials | Strataflex foam; polyfoam; convoluted foam topper | Extra-firm quilting/support layers; 1.5 lb polyfoam layer | High-density foam (1.5 lbs); extra-firm support; polyfoam support | Polyfoam; Poly Gel; convoluted foam topper |
| Lumbar-focused element | - | - | - | Gel Visco lumbar support |
| Support core | Foam-encased coil; base foam | ChiroCoil Premium (8" tall); 6-way foam encased | Advanced Edge Coil (wrapped coils); base foam | Advanced Edge Coil; base foam |
| Coil type | Wrapped coil | Wrapped coil | Wrapped coil | Wrapped coil |
| Height | 12.5" | - | - | 15" |
| Available sizes at Key West Mattress | Twin, Full, Queen, King | Twin, Full, Queen, King | Twin, Full, Queen, King | Twin, Full, Queen, King |
| Feel from our testing | Medium | Firm | Extra firm | Medium-plush |
| Motion isolation from our testing | Good | Good | Fair-good | Very good |
| Edge confidence from our testing | Good | Very good | Excellent | Good |
How we tested these mattresses
In our how we test mattresses process, I tested each mattress in the same bedroom setup, then brought in Marcus for heat and support checks and Jenna and Ethan for shared-bed movement nights. We scored support, pressure relief, cooling, motion isolation, responsiveness, edge support, and durability using repeatable routines—edge sitting, slow-roll turns, back/side sleep blocks, and a partner “get-in/get-out” drill. We also logged how each surface felt during laptop work and pre-bed reading. Dr. Adrian Walker reviewed our posture notes for alignment red flags and comfort trade-offs.
Key West Mattress: our testing experience
Ocean Rest Eurotop

Our testing experience
Ocean Rest Eurotop has a “cushion first, support second” feel. I’d settle into the top layer, then the coils would push back gently instead of popping me onto the surface. On back-to-side transitions, my shoulder had enough give to relax, but my hips stayed level.
Marcus called it “surprisingly stable for a softer top,” even when he tried to provoke that hammock feeling. Jenna and Ethan agreed it muted most of the ripple when someone climbed in, though you still notice a touch more coil liveliness than you get from the tight-top models.
What we liked
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A more forgiving top that still kept my lower back from feeling “bowed” by morning
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Smooth transitions when changing positions
Who it is best for
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Combo sleepers who want cushioning without losing support
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Couples who want comfort without a dead, foam-only feel
Where it falls short
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Not the strongest choice if you want a very firm, flat surface
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Edge sits softer than the firm models
Pros & cons
| Pros | Cons |
|---|---|
| Gentle cushioning with coil lift | Less “board-stable” than the firm beds |
| Comfortable for mixed back/side nights | Edge compresses more under sitting |
| Reduced partner disturbance for a pillow top | - |

Details
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Price (queen mattress only): $529.99
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Type: innerspring
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Top style: pillow top
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Height: 12.5"
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Coil type: wrapped coil
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Covering and comfort materials: CoolTex ticking; Strataflex foam; polyfoam; convoluted foam topper
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Support materials: foam-encased coil; base foam
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Available sizes: Twin, Full, Queen, King
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Shipping: -
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Trial period: -
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Warranty: -
Review score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.2 | Coils kept my hips level on back/side switches |
| Pressure Relief | 4.4 | Pillow-top feel reduced shoulder pressure during side blocks |
| Cooling | 4.0 | Stayed comfortable, with mild warmth after long lounging |
| Motion Isolation | 4.1 | Partner movement was softened, but not fully erased |
| Responsiveness | 3.9 | Easy turns, though the top is slower than tight-tops |
| Edge Support | 4.0 | Fine for sleeping near the edge; sitting compresses more |
| Durability | 4.0 | Straightforward coil-and-foam build with reasonable stability |
| Overall Score | 4.1 | Balanced comfort-forward option |
Ocean Rest Firm

Our testing experience
Ocean Rest Firm feels disciplined at the surface. It doesn’t let you settle deeply, so my lower back stayed “stacked” without needing to hunt for the right spot. On longer side-sleep blocks, it was tolerable, but it kept nudging me back toward back sleeping.
Marcus liked how easily he could roll from back to stomach without his hips dipping. Jenna and Ethan both said it was the easiest bed to get in and out of with minimal disturbance, largely because the top stays taut and rebounds quickly.
What we liked
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Strong alignment on back sleep, especially after long desk days
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Very steady edge feel when sitting to put on shoes
Who it is best for
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Back sleepers and stomach sleepers who want firm support
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Heavier sleepers who hate sagging
Where it falls short
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Side sleepers with sensitive shoulders may feel pressure buildup
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If you want a plush “hug,” this will feel too strict

Pros & cons
| Pros | Cons |
|---|---|
| Firm, stable alignment | Less forgiving at shoulders |
| Strong edge confidence | Not a plush surface feel |
| Easy to move on | - |

Details
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Price (queen mattress only): $529.99
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Type: innerspring
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Top style: tight top
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Cooling cover: CoolTex thermocool ticking
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Comfort layers: extra-firm quilting/support layers; 1.5 lb polyfoam layer
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Support system: ChiroCoil Premium (8" tall); 6-way foam encased
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Coil type and queen coil count: wrapped coil; 638 coils
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Available sizes: Twin, Full, Queen, King
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Shipping: -
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Trial period: -
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Warranty: -
Review score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.6 | Best lumbar steadiness on my back-sleep nights |
| Pressure Relief | 3.7 | Side-sleep blocks felt firm at the shoulder line |
| Cooling | 4.2 | Stayed noticeably cooler during long, still sleep stretches |
| Motion Isolation | 4.0 | Minimal ripple in couple movement drills |
| Responsiveness | 4.3 | Fast position changes without “foam drag” |
| Edge Support | 4.4 | Strong sitting and edge-sleep stability |
| Durability | 4.3 | Firm build felt resistant to body impressions |
| Overall Score | 4.2 | Support-first choice with a firmer comfort ceiling |
Edge 3000 XFIRM

Our testing experience
Edge 3000 XFIRM is a firm specialist: flat surface, lifted hips, and very little “give” up top. When I sat to tie my shoes, it held me higher than the Ocean Rest models, and that firmness carried into sleep—great for back sleeping, but less comfortable for extended side time.
Marcus couldn’t get it to feel unstable, even when he dropped his weight onto the center and then the edge. Jenna and Ethan noted that turning felt effortless, but you do sense a bit more bounce than on the plusher options.
What we liked
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The most reliable edge and midsection support in the group
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Quick, crisp repositioning
Who it is best for
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Back/stomach sleepers, especially heavier builds
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Anyone who wants a firm feel for posture consistency
Where it falls short
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Pressure relief is limited for dedicated side sleepers
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Couples who want a very muted surface may prefer plusher tops

Pros & cons
| Pros | Cons |
|---|---|
| Excellent edge stability | Least pressure-relieving feel |
| Firm, posture-forward support | More noticeable bounce than plush options |
| Easy to move on | - |
Details
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Price (queen mattress only): $629.99
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Type: innerspring
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Top style: tight top
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Covering: DeepFreeze ticking
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Comfort layers: high-density foam (1.5 lbs); extra-firm support; polyfoam support layer
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Support layers: Advanced Edge Coil (wrapped coils); base foam
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Coil type: wrapped coil
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Available sizes: Twin, Full, Queen, King
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Shipping: -
-
Trial period: -
-
Warranty: -
Review score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.7 | Strongest “keep you level” support, especially at the hips |
| Pressure Relief | 3.5 | Firm surface created more shoulder/hip awareness on my side |
| Cooling | 4.3 | Maintained a cooler feel through longer, still sleep periods |
| Motion Isolation | 3.8 | Controlled, but coil bounce is more detectable |
| Responsiveness | 4.5 | The easiest bed for turning without effort |
| Edge Support | 4.5 | Best sitting and edge-sleep stability of the four |
| Durability | 4.3 | Firm build felt resistant to early softening |
| Overall Score | 4.2 | A firm specialist with standout edge performance |
Edge B-40

Our testing experience
Edge B-40 felt like the “comfort with structure” pick. The top has enough padding that my shoulders could settle, but the center still held my hips up, which left my lower back feeling relaxed when I got up.
Marcus still preferred the extra-firm models, but he admitted B-40 was easier on his shoulder when he started on his side. Jenna and Ethan called it the easiest bed to share: late-night movement registered as a muted shift rather than a rolling wave.
What we liked
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Plush comfort with a steadier lumbar feel than typical plush beds
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Strong couple performance in motion drills
Who it is best for
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Couples who want a softer top without losing stability
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Combo sleepers who start on their side and finish on their back
Where it falls short
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Edge sitting compresses more than the extra-firm model
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Hot sleepers may still prefer the coolest-feeling tight-top builds

Pros & cons
| Pros | Cons |
|---|---|
| High pressure relief with lumbar reinforcement | Softer edge feel when perched |
| Very good motion control for couples | Not the coolest-feeling option here |
| Comfortable for mixed positions | - |

Details
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Price (queen mattress only): $629.99
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Type: innerspring
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Top style: tight top
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Comfort and feel reference: plush
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Height: 15"
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Covering: CoolTex ticking; polyfoam; Poly Gel
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Comfort layer: convoluted foam topper
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Support layers: Gel Visco lumbar support; Advanced Edge Coil; base foam
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Available sizes: Twin, Full, Queen, King
-
Shipping: -
-
Trial period: -
-
Warranty: -
Review score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.1 | Supportive enough for my back; softer top reduces “flat” feel |
| Pressure Relief | 4.5 | Best shoulder comfort of the four during side blocks |
| Cooling | 4.0 | Comfortable, though thicker comfort layers hold more warmth |
| Motion Isolation | 4.3 | Strong couple performance with muted transfer |
| Responsiveness | 3.8 | Turns were easy, but the plush top is slightly slower |
| Edge Support | 4.2 | Solid edge for sleeping; sitting compresses more than XFIRM |
| Durability | 4.0 | Tall, foam-forward top may soften faster than tight-tops |
| Overall Score | 4.1 | Comfort-forward pick that stayed surprisingly stable |
Compare performance scores across our picks
| Mattress | Overall Score | Support | Pressure Relief | Cooling | Motion Isolation | Durability | Responsiveness |
|---|---|---|---|---|---|---|---|
| Ocean Rest Eurotop | 4.1 | 4.2 | 4.4 | 4.0 | 4.1 | 4.0 | 3.9 |
| Ocean Rest Firm | 4.2 | 4.6 | 3.7 | 4.2 | 4.0 | 4.3 | 4.3 |
| Edge 3000 XFIRM | 4.2 | 4.7 | 3.5 | 4.3 | 3.8 | 4.3 | 4.5 |
| Edge B-40 | 4.1 | 4.1 | 4.5 | 4.0 | 4.3 | 4.0 | 3.8 |
Ocean Rest Eurotop and Edge B-40 were the most balanced overall, mostly because they kept pressure relief high without letting support collapse. Edge 3000 XFIRM had the clearest single advantage—support and edge stability—but it traded away some pressure relief. Ocean Rest Firm landed in the middle: firm, supportive, and especially comfortable for back sleepers.
How to choose a Key West Mattress
Start with your sleep position and body weight, then decide how much surface cushioning (and overall mattress firmness) you actually want. If you sleep mostly on your back or stomach, Ocean Rest Firm or Edge 3000 XFIRM tends to keep posture more consistent. If you rotate positions or get shoulder pressure on your side, Ocean Rest Eurotop or Edge B-40 is usually the safer pick. For couples, weigh motion isolation against edge support: choose Edge B-40 for comfort-first sharing, or Ocean Rest Firm for a steadier, firmer shared surface.
Limitations to keep in mind
These four picks skew practical: coil support, cooling covers, and straightforward builds rather than deep, luxury contouring. If you need very soft pressure relief—especially for strict side sleeping—the firmer models can feel unyielding. If you want a dead-quiet, no-bounce surface, Edge 3000 XFIRM may feel too lively. Edge B-40’s thicker comfort stack is cozy, but it won’t satisfy shoppers who want a crisp, taut top.
Key West Mattress vs. alternatives
Choose these models if you want coil-driven support, a cooler-feeling cover, and a lineup that runs from pressure-relieving Eurotops to posture-forward tight-tops. If you prefer a more widely distributed showroom brand, a Sealy Posturepedic or Beautyrest model in a comparable firmness can be easier to test in person. If you want a deeper foam “hug,” a Tempur-Pedic-style memory-foam build typically delivers stronger contouring than these coil-first designs.
Pro tips for Key West Mattress
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Give each mattress a simple break-in week by rotating positions instead of judging it after one night.
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Match your pillow height to your main position; firmer beds often need a slightly taller pillow for side time.
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If you sleep hot, start with breathable sheets and lighter bedding before adding thick toppers.
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On extra-firm models, a thin, breathable pad can take the edge off shoulder pressure without changing support much.
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Avoid sitting in the exact same spot every night—especially on plusher tops—to reduce early edge softening.
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If you use an adjustable base, test both flat and slightly elevated positions to find your best lumbar comfort.
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Protect the surface early; spills and moisture shorten comfort-layer life, and knowing how to clean a mattress helps.
FAQs
Which model is best if I hate sinking in?
Edge 3000 XFIRM, followed by Ocean Rest Firm.
Which one felt best for side-sleep starts?
Edge B-40 and Ocean Rest Eurotop were the most forgiving at the shoulder.
Which is most couple-friendly?
Edge B-40 muted partner movement the most in our shared-bed drills.
Which has the strongest edge?
Edge 3000 XFIRM held the highest during sitting and edge sleeping.