Saatva Rx · Supportive Plush · 15" research

30-second evidence brief

Bottom line

Supportive Plush 15 inches Saatva Rx; other feels and heights may perform differently.

Quick mattress answers

What the research suggests

Reported
Results vary
Not enough public information

Results vary

Sleep positionNot enough public information

The reviewed sources do not provide a clear position finding for this mattress.

Results vary

Body rangeNot enough public information

The reviewed sources do not provide a clear body-weight finding for this mattress.

Reported

CoolingGenerally favorable

The publication rated the tested feel medium soft 4/10, with 8/10 motion isolation, 7/10 edge support, 8/10 temperature…

Results vary

Motion isolationGenerally favorable

The publication rated the tested feel medium soft 4/10, with 8/10 motion isolation, 7/10 edge support, 8/10 temperature…

Reported

Support designQuilted cover

Organic-cotton-blend quilted surface with lumbar-zone treatment in the direct model.

Reported

Published feelSupportive Plush

A label is not an independent whole-mattress measurement.

BuildTall specialty hybrid Profile15 inches SourcesLinked below

Evidence suggests it may suit

People considering a plush, highly adaptive hybrid and who understand that comfort is not medical treatment.

Shoppers who value direct delivery and setup.

Evidence suggests checking first

Pain and condition-related brand positioning is not a medical guarantee.

The direct Rx is 15 inches; retailer construction equivalence must be proven separately.

Foam densities and a full size-by-size coil count are not published.

Research synthesis · no Nappedia physical testRead the full conclusion ↓

Nappedia visual reconstruction

Published sequence; dedicated visual not available

Layer list only

1
Quilted coverOrganic-cotton-blend quilted surface with lumbar-zone treatment in the direct model.Location not pinned: the raster does not resolve this component separately.
2
Advertised lumbar-zone componentsLocalized center-zone components; their separate appearance is not resolved in this illustration.Location not pinned: the raster does not resolve this component separately.
3
Microcoil comfort systemApproximately 2.75 inches of high-density foam encasing a one-inch microcoil layer; launch copy states 1,628 microcoils.Location not pinned: the raster does not resolve this component separately.
4
Rx Wave-Tech modulesGraphite- and phase-change-material-infused foam modules above the support coils.Location not pinned: the raster does not resolve this component separately.
5
Individually wrapped comfort coilsEight-inch, 14.5-gauge pocketed support unit with 609 coils in Queen, plus high-density side rails and base foam.Location not pinned: the raster does not resolve this component separately.

Evidence boundary: The reviewed sources publish a component sequence, but the current image library does not contain a defensible matching archetype. Nappedia therefore shows the source-supported list without a cut-open image. This is not a teardown or physical inspection by Nappedia.

Scope before conclusions

This page covers the exact database record “Saatva Rx Mattress — Supportive Plush — 15".” A documented option within this mattress model. Other heights or comfort choices remain on the same page unless the brand markets them under a different mattress name. Family-level evidence is used only where the public sources describe a shared construction; exact-configuration evidence is labeled separately. Nappedia has not slept on, opened, or laboratory-tested this mattress.

Editorial synthesis

Evidence behind the conclusion

Analysis

Supportive Plush 15 inches Saatva Rx; other feels and heights may perform differently.

Saatva Rx Mattress, Supportive Plush, 15" is documented as hybrid mattress with a supportive plush feel and 15 inches profile. The page uses the current or historical documents listed below. Independent findings appear only when the tested version is identified; missing results are marked as unknown.

Who the cited evidence may support

These are research signals, not a comfort guarantee.

People considering a plush, highly adaptive hybrid and who understand that comfort is not medical treatment.
Shoppers who value direct delivery and setup.

What to check before choosing

These limitations may change whether the mattress fits.

Pain and condition-related brand positioning is not a medical guarantee.
The direct Rx is 15 inches; retailer construction equivalence must be proven separately.
Foam densities and a full size-by-size coil count are not published.
Verify the exact Supportive Plush / 15 inches configuration before relying on family-level findings.

Confidence statement

High confidence in the configuration identity and current public dimensions; medium confidence in the published construction; performance confidence depends on whether a source tested this exact configuration.

Identity and core facts

At a glance

Exact record: OfficialSaatva Rx Mattress — Supportive Plush — 15"
Imported source label: Saatva Rx Mattress — Supportive Plush — 15"
¹
Type: OfficialTall specialty hybrid
Hybrid mattress
^{1, 2}
Brand firmness: OfficialSupportive Plush
A label is not an independent whole-mattress measurement.
^{1, 2}
Profile: Official15 inches^{1, 2}
Sizes located: OfficialTwin; Twin XL; Full; Queen; King; Split King; Cal King¹
Record status: OfficialCurrent on brand site
Record type: Configuration. Exact-name support: documented in the reviewed source set.
^{1, 2}
Research method: AnalysisDocuments and attributed independent sources; no Nappedia physical test^{1, 2}

Top to bottom

Published construction

This architecture is normalized from public documents. It is not our teardown, and it does not convert brand claims into verified composition.

01
Official
Quilted cover
Organic-cotton-blend quilted surface with lumbar-zone treatment in the direct model.
Provides the plush surface and targeted center support.
^{1, 2}
02
Official
Lumbar crown
Half-inch gel-infused memory-foam lumbar crown.
Adds localized center-third cushioning.
^{1, 2}
03
Official
Microcoil comfort system
Approximately 2.75 inches of high-density foam encasing a one-inch microcoil layer; launch copy states 1,628 microcoils.
Adds cushioning and responsive contour.
^{1, 2}
04
Official
Rx Wave-Tech modules
Graphite- and phase-change-material-infused foam modules above the support coils.
Designed to respond locally to load; the health-oriented naming is marketing terminology, not clinical evidence.
^{1, 2}
05
Official
Pocketed-coil base and perimeter
Eight-inch, 14.5-gauge pocketed support unit with 609 coils in Queen, plus high-density side rails and base foam.
Provides the tall mattress's primary support.
^{1, 2}

Chemicals and claims

Materials & certifications

Official

CertiPUR-US

Brand states qualifying foams are certified^{1, 2}

Official

GREENGUARD Gold

Listed by Saatva for the direct model^{1, 2}

Official

Flame barrier

Plant-based barrier; brand says no fiberglass^{1, 2}

Not found / unresolved

Medical-device status

No such status established

A mattress page and endorsements do not prove treatment efficacy for an individual condition.

^{1, 2}

Not found / unresolved

Exact-record certificate documents

Not linked unless specifically stated above

Certification names do not establish scope for every component, generation, retailer SKU, or production lot.

^{1, 2}

Representative editorial textures for orientation only. Nappedia did not inspect a physical material sample.

Brand scale vs measured samples

Firmness evidence

Official

Published label

Supportive Plush; 15 inches.

Manufacturer, retailer, or historical-source wording; not an independent measurement.^{1, 2}

Independent

Independent or cross-source context

The direct Rx is marketed as Supportive Plush around 3–4/10. A retailer 'Plush' label cannot be assumed to use the identical comfort build.

Family-level context; transfer to the exact configuration is limited and labeled.⁶

Analysis

Nappedia interpretation

Treat Supportive Plush as a seller label whose real-world feel can vary by body weight, sleep position, production generation, and test method.

Document synthesis only; no physical test by Nappedia.^{1, 2}

Method, sample, and source kept attached

Performance evidence matrix

A result describes a particular test method and sample. When reputable reviewers disagree, this file records the disagreement instead of inventing a consensus score.

Independent

Published performance assessment

Source-scoped

The publication rated the tested feel medium soft 4/10, with 8/10 motion isolation, 7/10 edge support, 8/10 temperature control, 7/10 ease of movement, 7.5/10 durability, and 8/10 pressure relief.

Not found / unresolved

Generation warning

Evidence gap

Tom's Guide says the design changed after its 2023 Twin test sample, including a later edge-zone revision.

No exact sample table is shown. A version-matched independent measurement set was not located for this mattress. Related family reviews remain in the sources used without being presented as tests of this mattress.

Exact published measurements

Dimensions & weight

Published profile15 inches

7 documented size rows: Twin, Twin XL, Full, Queen, King, and more.

Size	Dimensions	Weight	Source
Twin	38" × 75" × 15"	70 lb	^{1, 2}
Twin XL	38" × 80" × 15"	76 lb	^{1, 2}
Full	54" × 75" × 15"	99 lb	^{1, 2}
Queen	60" × 80" × 15"	124 lb	^{1, 2}
King	76" × 80" × 15"	151 lb	^{1, 2}
Split King	2 × 38" × 80" × 15"	76 lb each	^{1, 2}
Cal King	72" × 84" × 15"	151 lb	^{1, 2}

The contract matters

Trial, return, warranty & delivery

Policy snapshotFive purchase terms to verify before ordering

01Home trial365 nights under current direct-sale terms
02Return or exchange$99 processing fee under current direct-sale terms
03WarrantyCurrent Friends for Life limited warranty
04DeliveryFree in-room delivery and setup; eligible old-mattress removal

OfficialHome trial: 365 nights under current direct-sale terms
Confirm that the selected configuration remains eligible at checkout.
^{1, 3}
OfficialReturn or exchange: $99 processing fee under current direct-sale terms³
OfficialWarranty: Current Friends for Life limited warranty
Coverage, remedy, support-base, ownership, and impression-depth conditions are governed by the contract, not this summary.
⁴
OfficialDelivery: Free in-room delivery and setup; eligible old-mattress removal
Applies to eligible direct Saatva orders and locations.
^{1, 5}

Do not mix generations

Previous names & version history

Located source record
Official
Saatva Rx Mattress — Supportive Plush — 15" appears in the reviewed source set.
Current on brand site. A documented option within this mattress model. Other heights or comfort choices remain on the same page unless the brand markets them under a different mattress name.
¹
Corroborating record
Analysis
A second source was reviewed for Saatva Rx.
It is used for context and conflict checking; it does not automatically prove a distinct SKU or identical construction.
²
31 Jul 2026 evidence freeze
Analysis
Nappedia froze this page's source set and uncertainty labels.
Future product, retailer, certification, policy, or review changes require a new evidence edition.
^{1, 2}

Questions found during research

Common questions, answered from the evidence

These themes recur across brand help centers and independent review research: model name, firmness, sizing, construction, base compatibility, materials, and purchase terms. They are not presented as search-volume rankings.

Which exact mattress does this page cover?

This page covers “Saatva Rx Mattress · Supportive Plush · 15".” Its documented status is Current on brand site, and the published options are “Supportive Plush · 15 inches · Current on brand site.” Findings from another height, firmness, retailer version, or generation are not automatically treated as equivalent. ¹

What firmness is documented for this mattress?

Supportive Plush; 15 inches. Manufacturer, retailer, or historical-source wording; not an independent measurement. ^{1, 2}

How tall is this mattress, and which sizes were documented?

The published profile for this mattress is 15 inches. Documented sizes: Twin, Twin XL, Full, Queen, King, Split King, Cal King. ^{1, 2}

What is inside this mattress?

The cited construction record lists Quilted cover, Lumbar crown, Microcoil comfort system, Rx Wave-Tech modules, Pocketed-coil base and perimeter. The visual is a research reconstruction, not a Nappedia teardown. ^{1, 2}

What did the reviewed sources say about fiberglass or the flame barrier?

Plant-based barrier; brand says no fiberglass ^{1, 2}

What trial, return, or exchange terms apply to this mattress?

Home trial: 365 nights under current direct-sale terms Confirm that the selected configuration remains eligible at checkout. Return or exchange: $99 processing fee under current direct-sale terms ^{1, 3}

What independent evidence is available, and which configuration did it test?

The publication rated the tested feel medium soft 4/10, with 8/10 motion isolation, 7/10 edge support, 8/10 temperature control, 7/10 ease of movement, 7.5/10 durability, and 8/10 pressure relief. Independent hands-on and instrument testing; these are publication scores, not medical outcomes. ⁶

The blank spaces are data

What is missing

“Not found” means the fact was not located in the reviewed public sources as of the page review date. It does not prove the feature or material is absent.

Exact identity and construction boundary: Documented with remaining component gaps
A documented option within this mattress model. Other heights or comfort choices remain on the same page unless the brand markets them under a different mattress name.
^{1, 2}
Complete numeric foam densities: Not found or not configuration-specific in the reviewed public sources^{1, 2}
Exact date of the documented edge-zone revision: Not found or not configuration-specific in the reviewed public sources^{1, 2}
Clinical outcome evidence: Not found or not configuration-specific in the reviewed public sources^{1, 2}
Retail-exclusive construction equivalence: Not found or not configuration-specific in the reviewed public sources^{1, 2}
Independent test of this exact height, firmness, side, retailer SKU, and generation: Only where explicitly identified above; otherwise not found⁶
Population-level durability or failure rate: Not found
Reviews, warranties, and individual owner reports do not establish a denominator-based long-term failure rate.
^{1, 2}

Open every underlying document

Sources used

Official pages establish what the seller publishes. Independent sources are used for observed performance, measurements, teardowns, and version checks. Neither source class is treated as infallible. No physical test was conducted by Nappedia.

Commercial disclosure: Nappedia has an affiliate relationship with Saatva. The product link on this page is currently an ordinary, untracked link.

1
Saatva · Primary or earliest located record
First located record for Saatva Rx Mattress — Supportive Plush — 15" ↗Reviewed 31 Jul 2026
2
Saatva · Corroborating specification, history, or context
Corroborating or context record for Saatva Rx ↗Reviewed 31 Jul 2026
3
Saatva · Current direct-sale policy; applicability labeled in the dossier
Home trial, returns and exchanges ↗Reviewed 31 Jul 2026
4
Saatva · Current direct-sale warranty; applicability labeled in the dossier
Saatva mattress lifetime warranty ↗Reviewed 31 Jul 2026
5
Saatva · Current direct-sale delivery policy
Free white-glove mattress delivery ↗Reviewed 31 Jul 2026
6
Sleep Foundation · Independent laboratory and panel review
Saatva Rx Mattress Review ↗Reviewed 31 Jul 2026
7
Tom's Guide · Independent one-month test of a prior generation
Saatva Rx Mattress Review ↗Reviewed 31 Jul 2026
8
Saatva Customer Help Center · Current official specification table
What are the Saatva Rx specs? ↗Reviewed 31 Jul 2026
9
Saatva Customer Help Center · Current model-by-model manufacturer barrier disclosure
What flame retardants do Saatva mattresses use? ↗Reviewed 31 Jul 2026
10
Saatva Customer Help Center · Current manufacturer fiberglass statement
Do Saatva mattresses contain fiberglass? ↗Reviewed 31 Jul 2026

← Saatva Rx family Official product page · not tracked ↗

Supportive Plush 15 inches Saatva Rx; other feels and heights may perform differently.

Published sequence; dedicated visual not available

Evidence behind the conclusion

Supportive Plush 15 inches Saatva Rx; other feels and heights may perform differently.

At a glance

Published construction

Quilted cover

Lumbar crown

Microcoil comfort system

Rx Wave-Tech modules

Pocketed-coil base and perimeter

Materials & certifications

CertiPUR-US

GREENGUARD Gold

Flame barrier

Medical-device status

Exact-record certificate documents

Firmness evidence

Published label

Independent or cross-source context

Nappedia interpretation

Performance evidence matrix

Dimensions & weight

Trial, return, warranty & delivery

Previous names & version history

Saatva Rx Mattress — Supportive Plush — 15" appears in the reviewed source set.

A second source was reviewed for Saatva Rx.

Nappedia froze this page's source set and uncertainty labels.

Common questions, answered from the evidence

What is missing

Continue researching

Decision comparisons containing this mattress

Sources used