The Kluft Princess Mattress is a 12-inch, low-profile luxury-firm mattress built around nested pocketed coils and breathable natural materials like cotton, horsehair, and TerraPur™ latex. In our hands-on testing, it felt lifted, steady, and noticeably airy rather than deeply cushioned. Edge security and ease of movement stood out, especially for hot sleepers.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Kluft Princess Mattress | 4.4/5 | Breathable support, secure edges, easy turns | Not deeply plush, some bounce, premium price tier | Back sleepers and combination sleepers who want buoyant support |
Final Verdict
After four weeks of testing, the Kluft Princess came across as a tailored luxury-firm mattress with steady support through the hips and better airflow than denser foam-heavy beds. It kept posture tidy on the back, responded quickly when we changed positions, and stayed dependable near the perimeter.
The trade-off is that the comfort profile stays on the lifted side. You get some cushioning from the surface materials, but not the deep, plush sink that some side sleepers want.
Who It’s For
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Back sleepers who want a lifted lumbar feel
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Combination sleepers who prefer quick repositioning
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Hot sleepers who like breathable fibers over dense foam
Who It’s Not For
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Very lightweight side sleepers chasing deeper pressure relief
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Couples who want the calmest possible surface
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Shoppers focused on value-first pricing

How We Tested It
We rotated the mattress through four weeks of overnight sleep and daytime use, following our hands-on mattress testing process across back, side, and short stomach sessions. Each tester logged impressions on support, cooling, pressure relief, motion isolation, responsiveness, edge support, and overall firmness cues. We repeated the same checks at week one and week four to see whether the feel stayed consistent.
Our Testing Experience
On the first night, the mattress felt neatly supportive instead of stiff. Back sleeping was where it made the strongest case for itself: hips stayed level, the lower back felt well held, and the surface never let us sag into the middle. Side sleeping felt stable, but Mia wanted more shoulder give than the top allowed. Marcus noticed that the fiber-forward build stayed drier and less stuffy than thicker foam comfort systems on warmer nights. When Jenna and Ethan ran their usual partner-movement checks, most motion stayed fairly contained, though quick shifts still carried some bounce.

What we liked
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Balanced, buoyant support that kept the hips from dipping
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Cooler, drier surface feel than many denser foam-heavy builds
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Strong edge hold for sitting and full-width sleep
Who it is best for
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Back sleepers who like a lifted lumbar feel
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Combination sleepers who want easy repositioning
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Hot sleepers who prefer airflow and natural fibers
Where it falls short
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Lightweight side sleepers who need deeper shoulder relief
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Couples who are highly sensitive to bounce
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Plush lovers who want a pillow-top hug

Pros & Cons
| Pros | Cons |
|---|---|
| Steady support that helps keep posture aligned | Not a deep, pressure-melting feel |
| Breathable natural materials help reduce heat buildup | Some bounce is still noticeable for couples |
| Reinforced perimeter feels secure | May feel too firm at the shoulder for lighter side sleepers |
| Responsive surface makes turning easy | Premium category pricing |
Details
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Feel: Luxury firm
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Profile: 12"
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Fabric/quilt: Belgian Jacquard Damask; silk/wool fibers; HiLoft FR fibers; plush quilting foam; cotton tricot backing
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Comfort layers: 8 lbs cotton; luxury-firm TerraPur™ latex; horsehair
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Support system: High-density encased perimeter; Original Marshall® nested pocketed coil unit (15.5 gauge)
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Foundation: Wood foundation; 9" or 5.75" profile options; adjustable-base friendly
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Warranty: 10-year guarantee

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.6 | Held the hips up well and kept back-sleep posture steady |
| Cooling | 4.5 | Natural fibers and the open build helped limit heat buildup |
| Pressure Relief | 4.1 | Good for most sleepers, though lighter side sleepers may want more give |
| Motion Isolation | 4.0 | Most movement stayed contained, but quick shifts still created bounce |
| Responsiveness | 4.4 | Easy to turn without feeling stuck in the top layers |
| Edge Support | 4.7 | Strong perimeter for sitting and sleeping near the side |
| Durability | 4.6 | Hand-tufted build and reinforced edge feel built to hold shape |
| Overall | 4.4 | Best for buoyant support, airflow, and secure edges |
Choosing Guide
Choose the Kluft Princess if you want a luxury-firm mattress that keeps you feeling lifted, sleeps relatively cool for its category, and stays stable when you change positions. It makes the most sense for back sleepers and combination sleepers who value alignment and dislike slow-sinking foam.
It is less ideal if you are very light, sleep mostly on your side, or want the calmest possible surface for partner movement. In those cases, a softer comfort system or a more motion-dampening build may feel easier to live with. For a more mainstream alternative with similar support-minded appeal, the Saatva Classic is worth a look—Plush Soft for more relief, Luxury Firm for a closer balance. If you want a plusher luxury option, Aireloom Preferred Luxetop models and Stearns & Foster Reserve models can offer a deeper, more cushioned top.

Limitations
The Kluft Princess is built to support first and cushion second. Very lightweight side sleepers may notice shoulder pressure in longer side-sleep sessions, and partner movement never fully disappears because the mattress still has some spring energy. If your ideal bed is deeply plush or especially motion-deadening, this one may read too lifted and too responsive.
Vs. Alternatives
Why choose the Kluft Princess
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You want a buoyant luxury-firm surface that keeps the hips level
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You sleep hot and prefer breathable natural fibers
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You care about edge stability for sitting and full-surface use
Alternatives to consider
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Aireloom Preferred Luxetop models for a plusher surface with luxury coil support
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Stearns & Foster Reserve models for a deeper, more traditional luxury feel
Pro Tips
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Give it a real break-in period; the surface relaxes a bit as the materials settle.
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Use a supportive foundation with proper center support to keep the feel consistent.
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Add a breathable mattress protector to keep the top layer clean without trapping much heat.
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Side sleepers may do better with a slightly higher-loft pillow to help keep the neck level.
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If you want a touch more softness, a breathable topper is a cleaner fix than a thick foam pad.
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Need a little extra give? Start with simple ways to make a mattress softer before changing the whole setup.
FAQs
How firm does the Kluft Princess Mattress feel?
It reads as luxury firm: supportive, buoyant, and more lifted than plush.
Does it sleep cool?
For a hand-built luxury mattress, yes. In our testing, the natural fibers and open coil structure helped it stay drier and less heat-retentive than many beds in the hot-sleeper category.
Is it good for couples?
It works reasonably well, but not like a motion-dead foam bed. Most movement stayed contained in our tests, though quick shifts were still noticeable, so it is better suited to couples who do not need the calmest surface in the couples category.