The Kluft Royal Ascent Plush Mattress is an ultra-luxury innerspring built with TerraPur™ latex, specialty micro-coils, and premium natural fibers like cashmere, wool, alpaca, and horsehair. In our testing, it delivered deep pressure relief with a buoyant, supportive feel rather than a loose, overly soft sink. The trade-offs are clear: a tall, heavy build and a price that puts it firmly in niche luxury territory.
Table of Contents
Product Overview
| Mattress | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Kluft Royal Ascent Plush | 4.4 | Deep pressure relief; airy luxury build; steady edges | Very expensive; tall and heavy; too plush for some stomach sleepers | Side/back sleepers, couples, and luxury shoppers who want natural materials |
Final Verdict
In our testing, the Royal Ascent Plush felt rich and cushioned on top, but it did not let the hips drift out of line. It slept cooler than many plush beds because the build stays airy, though the surface still feels cozy rather than cool to the touch.
Who It’s For
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Side and back sleepers who want plush comfort without giving up support
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Couples who want a quieter coil feel and usable edge space
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Hot sleepers who prefer breathable natural fibers over dense foam
Who It’s Not For
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Strict stomach sleepers who need a flatter, firmer surface
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Shoppers who want a lighter mattress that is easier to rotate
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Anyone looking for a value-priced upgrade
How We Tested
We slept on the mattress for several weeks, rotating between back and side sleeping and spending time near the edge while reading and working before bed. We repeated checks for support, pressure relief, and cooling, then looked at motion isolation, responsiveness, edge support, and early durability signs. That included watching shoulder and hip sink, tracking how quickly the surface recovered after turns, and checking for visible settling with daily use.
Testing Experience
The first thing we noticed was that the plush top gives way in a controlled, layered way instead of collapsing all at once. On my back, there was enough cushion to fill in the lower back, but the support underneath kept my hips from sinking too far. On my side, shoulder pressure eased quickly, and the surface had a buoyant lift instead of that slow, stuck-in-foam feel. Marcus described it as warm rather than stuffy. Mia liked the shoulder relief but still felt held in place. When Jenna and Ethan ran motion checks, movement stayed fairly contained for such a tall innerspring, and the perimeter felt steady enough that neither of them felt pulled toward the middle.
What we liked
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Plush comfort with enough underlying support to keep the hips from drifting
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Breathable, buoyant feel for a high-end coil-and-latex build
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Strong perimeter stability for sitting and edge sleeping
Who it is best for
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Side sleepers who need pressure relief without losing alignment
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Back sleepers who like a cushioned top but still want support
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Couples who regularly use the outer third of the bed
Where it falls short
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Stomach sleepers who need a flatter, firmer surface
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Anyone sensitive to tall mattresses or deep-pocket sheet requirements
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Shoppers who want a lighter mattress that is easier to move
Pros & Cons
| Pros | Cons |
|---|---|
| Plush surface with supportive lift | Too plush for some stomach sleepers |
| Strong pressure relief at the shoulders and hips | Tall profile can require deep-pocket sheets |
| Buoyant response with less stuck-in-bed feel | Heavy and harder to rotate |
| Breathable build for a plush mattress | Investment-level price |
| Reinforced edge feels stable | Not a low-profile or minimalist bed |
| Works with an adjustable base | The feel will be too plush for some sleepers |
Details
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Mattress type: Innerspring with specialty micro-coils, TerraPur™ latex, and nested pocketed coils.
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Firmness: Plush.
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Height: About 14.5" to 15".
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Quilt/fabric stack: Belgian Jacquard damask, silk/wool fibers, wool/alpaca fibers, FR knit, zoned TerraPur™ latex, plush convoluted foam, and stretch knit backing.
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Comfort layers: 19-gauge micro-coils (Queen 1,872; King 2,400), multiple TerraPur™ natural latex layers, luxury wool/cashmere, organic cotton, and horsehair.
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Support core: High-density encased perimeter plus an Original Marshall® nested calico pocketed coil unit (15.5 gauge).
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Edge support: Reinforced perimeter support.
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Adjustable base compatible: Yes.
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Standard sizes: Twin, Twin XL, Full, Queen, King, California King, and Split California King.
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Foundation: 8-way hand-tied foundation with roughly 6" or 9" profile options.
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Price: Starts around $15,997; Queen commonly around $17,699.99; King and California King around $21,799.00.
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Availability: Sold through authorized retailers and not handled like a mattress-in-a-box purchase.
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Comfort guarantee: 120 nights, with some retailer programs extending to 365 nights when a protector is purchased.
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Warranty: 15-year limited.
Review Score
| Metric | Score | Remarks |
|---|---|---|
| Support | 4.6 | Plush on top, but the core keeps the hips from drifting and helps the lower back stay filled in. |
| Cooling | 4.4 | Airflow is strong for a plush build, though the surface still feels cozy rather than cool. |
| Pressure Relief | 4.7 | Shoulder and hip pressure dropped noticeably during longer side-sleep sessions. |
| Motion Isolation | 4.1 | Good for a tall innerspring; some bounce remains, but most movement stays contained. |
| Responsiveness | 4.4 | Easy to turn on, with more lift than a foam-forward plush bed. |
| Edge Support | 4.3 | The reinforced perimeter feels dependable for sitting and edge sleeping. |
| Durability | 4.6 | The premium build showed very little early settling during daily use. |
| Overall | 4.4 | A high-end plush that pairs surface luxury with real structural support. |
Choosing Guide
Choose this mattress if you want plush pressure relief without giving up structure. It makes the most sense for side sleepers, back sleepers, couples who use the edge, and luxury buyers who prefer breathable natural materials over dense, slow-moving foam. The main compromises are price, weight, and the overall height of the bed.
If you are a lighter-weight side sleeper and want a less expensive route to pressure relief and zoned support, Helix Midnight Luxe is the easier buy. If you want a more traditional innerspring feel with straightforward white-glove delivery and a long home trial, Saatva Classic is the more practical alternative.
Limitations
The plush surface can feel too conforming for strict stomach sleepers, especially if you carry more weight through the hips. Its tall profile also pushes you toward deeper-pocket sheets and a bed height that feels comfortable to get in and out of. Because it is a heavy luxury build with multiple coil and latex layers, rotating it is a two-person job, and it is not the easiest pick for frequent moves or guest rooms with constant turnover.
Alternatives
Why choose these models
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You want a plush, buoyant surface that does not bottom out too quickly
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You care about natural fibers and a breathable luxury build
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You need reinforced edges for regular sitting and shared use
Alternatives to consider
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Stearns & Foster Reserve: another polished luxury innerspring direction with pressure-relieving comfort layers and a more mainstream retail footprint
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Aireloom Luxetop M2 Plush: a plush handcrafted luxury option with strong airflow language and a softer, hotel-style presentation
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Saatva Classic: a more accessible innerspring with easier buying logistics, in-room setup, and a long home trial
Pro Tips
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Put it on a solid foundation; a base with too much give will make the plush top feel less controlled.
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If your hips tend to sink, use a lower-loft pillow on your back to keep your spine from bowing.
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For side sleeping, a knee pillow can help keep the hips stacked on a plush surface.
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Check your fitted-sheet depth before buying; the height matters here.
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If you sleep hot, lean on breathable bedding and skip thick foam toppers that trap heat.
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Rotate on a steady schedule to keep the feel more even across the surface.
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When you test the edge, spend a few minutes sitting and reading there instead of doing only a quick sit check.
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If you share the bed, expect more surface lift than you would get from dense memory foam.
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Use a mattress protector from day one to help protect the quilted surface.
FAQs
Does it feel too plush after a full night?
It cushions quickly, but in our testing the support layers kept the hips from settling into a hammock shape once the body fully relaxed.
How does it do for hot sleepers?
It feels warm and luxurious, but airflow is better than in many plush beds; Marcus noticed less trapped heat than he usually gets from foam-heavy plush designs.
Is it couple-friendly?
For a tall innerspring, motion stays fairly contained, and the reinforced perimeter made it easier for Jenna and Ethan to use the edges without sliding inward.
What kind of base works best?
A sturdy base works best with a heavy luxury mattress like this, and the bed is compatible with adjustable bases if you want head-and-foot articulation.
