Chill Hybrid research

30-second evidence brief

Bottom line

Chill Hybrid: a documented cooling memory-foam hybrid with outside findings kept in their exact source scope.

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.

Results vary

CoolingGenerally favorable

Comfort, support, cooling, pain relief, and durability are not universal outcomes or medical conclusions.

Results vary

Motion isolationNot enough public information

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

Results vary

Support designPocketed-coil support

Individually moving coils with reinforced perimeter Primary support and airflow

Reported

Published feelMedium; independent testing describes Medium Firm

Brand wording, not our laboratory measurement.

BuildCurrent U.S. mattress research Profile12 inches SourcesLinked below

Evidence suggests it may suit

Shoppers specifically researching the Chill Hybrid rather than a loosely related brand family.

Readers who want official product claims separated from attributed independent findings and open questions.

Evidence suggests checking first

Published firmness is a label, not an independent whole-mattress measurement or a comfort guarantee.

Materials, suppliers, policies, and construction details can change; the dated sources below define the scope of this page.

Research synthesis · no Nappedia physical testRead the full conclusion ↓

Construction evidenceComponents documented; layer order not established

The reviewed sources name 3 components for Chill Hybrid, but do not support one reliable top-to-bottom sequence. No cut-open layer stack is shown because that would imply evidence we do not have.

Scope before conclusions

This dossier covers the current U.S. Chill Hybrid in Medium · 12 inches. It does not silently merge nearby heights, firmnesses, retailer editions, sibling models, or earlier generations. We have not slept on, opened, or physically tested this mattress.

Editorial synthesis

Evidence behind the conclusion

Analysis

Chill Hybrid: a documented cooling memory-foam hybrid with outside findings kept in their exact source scope.

Official sources establish the current identity, the published medium; independent testing describes medium firm feel, the 12 inches profile, broad construction, and direct-purchase policies to the extent stated. Sleep Foundation publishes an 8.1/10 overall rating for the Chill Hybrid, while independent firmness testing describes it as medium firm. Sleep Foundation's displayed score is normalized to 81/100 for comparison. It remains that publisher's sleep foundation overall rating for cocoon chill hybrid, not a score created or physically reproduced by Nappedia. Exact component densities and suppliers, Configuration-matched long-term durability, Complete fire-barrier and adhesive recipe remain unresolved, so they are shown as evidence gaps instead of being inferred from a nearby mattress.

Who the cited evidence may support

These are research signals, not a comfort guarantee.

Shoppers specifically researching the Chill Hybrid rather than a loosely related brand family.
Readers who want official product claims separated from attributed independent findings and open questions.

What to check before choosing

These limitations may change whether the mattress fits.

Published firmness is a label, not an independent whole-mattress measurement or a comfort guarantee.
Materials, suppliers, policies, and construction details can change; the dated sources below define the scope of this page.

Confidence statement

High confidence in the captured identity and cited policy statements; construction confidence follows the disclosure depth shown below. No physical test was performed, and unknown details remain explicitly unresolved.

Identity and core facts

At a glance

Exact record: OfficialChill Hybrid · Medium · 12 inches^{1, 2}
Brand: OfficialCocoon by Sealy¹
Construction: OfficialCooling memory-foam hybrid^{1, 2}
Published feel: OfficialMedium; independent testing describes Medium Firm
Brand wording, not our laboratory measurement.
^{1, 2}
Profile: Official12 inches^{1, 2}
Sizes located: OfficialTwin, Twin XL, Full, Queen, King, California King; exact availability can vary^{1, 2}
Independent exact score: Independent81/100 · Sleep Foundation
Sleep Foundation overall rating for Cocoon Chill Hybrid
⁵

Named components

Published component map

The official page names these components but does not render one reliable top-to-bottom sequence. They are not numbered as a confirmed stack. This is not our teardown or independent verification of composition.

•
Official
Phase-change cooling cover
Stretch-knit surface with heat-management material
Surface temperature moderation
^{1, 2}
•
Official
Memory foam and transition foam
Conforming comfort layer over stabilizing polyfoam
Pressure response and transition
^{1, 2}
•
Official
Pocketed-coil support
Individually moving coils with reinforced perimeter
Primary support and airflow
^{1, 2}

Chemicals and claims

Materials & certifications

Not found / unresolved

Foams

Exact densities and chemical formulations not published

Disclosure retained at the exact-model or explicitly stated family scope.

^{1, 2}

Not found / unresolved

Fire barrier

Exact SKU recipe not found

Disclosure retained at the exact-model or explicitly stated family scope.

^{1, 2}

Not found / unresolved

Adhesives and suppliers

Complete bill of materials not published

Disclosure retained at the exact-model or explicitly stated family scope.

^{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 feel

Medium; independent testing describes Medium Firm

Official current product or lineup wording; not an independent whole-mattress measurement.^{1, 2}

Independent

Independent context

Sleep Foundation publishes an 8.1/10 overall rating for the Chill Hybrid, while independent firmness testing describes it as medium firm.

The 81/100 normalization remains the publisher's exact-model score; no Memory Foam result is transferred to the Hybrid.⁵

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

Attributed outside findings

Source-scoped

Analysis

Interpretation boundary

Editorial synthesis

Comfort, support, cooling, pain relief, and durability are not universal outcomes or medical conclusions.

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 profile12 inches

1 documented size rows: Queen.

Size	Dimensions	Weight	Source
Queen	60" × 80" × 12 inches	Exact current Queen weight not found unless separately stated by the cited product source	^{1, 2}

The contract matters

Trial, return, warranty & delivery

Policy snapshotFive purchase terms to verify before ordering

01Direct-purchase trial100-night direct-purchase trial; eligibility and return conditions apply
02Limited warranty10-year limited mattress warranty
03Retailer boundarySeller terms may replace direct-brand terms

OfficialDirect-purchase trial: 100-night direct-purchase trial; eligibility and return conditions apply
Purchase channel, condition, location, pickup, exchange, and final-sale conditions can change eligibility.
³
OfficialLimited warranty: 10-year limited mattress warranty
Original-purchaser, proof-of-purchase, condition, and support-system requirements apply.
⁴
Not found / unresolvedRetailer boundary: Seller terms may replace direct-brand terms
Confirm the named seller's policy before purchase.
^{3, 4}

Do not mix generations

Previous names & version history

12 Aug 2026
Analysis
Current-source dossier assembled
Identity, public construction, policies, independent evidence, and gaps were reviewed together without claiming first-hand testing.
^{1, 2, 3, 4, 5}

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 “Chill Hybrid.” Its documented status is Current U.S. mattress research, and the published options are “Medium · 12 inches.” Findings from another height, firmness, retailer version, or generation are not automatically treated as equivalent. ^{1, 2}

What firmness is documented for this mattress?

Medium; independent testing describes Medium Firm Official current product or lineup wording; not an independent whole-mattress measurement. ^{1, 2}

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

The published profile for this mattress is 12 inches. Documented sizes: Queen. ^{1, 2}

What is inside this mattress?

Reviewed sources name Phase-change cooling cover, Memory foam and transition foam, Pocketed-coil support, but one reliable top-to-bottom order was not verified. ^{1, 2}

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

Exact SKU recipe not found Disclosure retained at the exact-model or explicitly stated family scope. ^{1, 2}

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

Direct-purchase trial: 100-night direct-purchase trial; eligibility and return conditions apply Purchase channel, condition, location, pickup, exchange, and final-sale conditions can change eligibility. ³

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

Sleep Foundation publishes an 8.1/10 overall rating for the Chill Hybrid, while independent firmness testing describes it as medium firm. Sleep Foundation's displayed score is normalized to 81/100 for comparison. It remains that publisher's sleep foundation overall rating for cocoon chill hybrid, not a score created or physically reproduced by Nappedia. Independent exact-model testing and overall rating. The 81/100 normalization remains the publisher's exact-model score; no Memory Foam result is transferred to the Hybrid. ⁵

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 component densities and suppliers: Not established
The reviewed source set does not support a more specific exact-current claim.
^{1, 2, 5}
Configuration-matched long-term durability: Not established
The reviewed source set does not support a more specific exact-current claim.
^{1, 2, 5}
Complete fire-barrier and adhesive recipe: Not established
The reviewed source set does not support a more specific exact-current claim.
^{1, 2, 5}
Complete bill of materials: Not found
Exact densities, formulations, suppliers, adhesives, and production-lot changes are not fully public.
^{1, 2}
Configuration-matched long-term durability: Not established
Warranty terms and a publisher's test sample do not establish a population failure rate.
^{4, 5}
Physical teardown: Not performed
Any cutaway is a representative editorial archetype and does not assert unpublished layer dimensions.
^{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.

1
Cocoon by Sealy · Official current U.S. product source
Chill Hybrid current product record ↗Reviewed 12 Aug 2026
2
Cocoon by Sealy · Official lineup and identity source
Cocoon by Sealy current mattress catalog ↗Reviewed 12 Aug 2026
3
Cocoon by Sealy · Official policy source
Direct-purchase trial and returns ↗Retailer terms can differ
4
Cocoon by Sealy · Official warranty source
Mattress warranty ↗
5
Sleep Foundation · Independent exact-model testing and overall rating
Cocoon Chill Hybrid mattress review ↗

← Research Library Browse all Cocoon by Sealy research Official product page ↗

Chill Hybrid: a documented cooling memory-foam hybrid with outside findings kept in their exact source scope.

Evidence behind the conclusion

Chill Hybrid: a documented cooling memory-foam hybrid with outside findings kept in their exact source scope.

At a glance

Published component map

Phase-change cooling cover

Memory foam and transition foam

Pocketed-coil support

Materials & certifications

Foams

Fire barrier

Adhesives and suppliers

Firmness evidence

Published feel

Independent context

Performance evidence matrix

Dimensions & weight

Trial, return, warranty & delivery

Previous names & version history

Current-source dossier assembled

Common questions, answered from the evidence

What is missing

Continue researching

Sources used