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Cluster: Warranty Fine-Print, Sagging & Slat TrapsID: QST-WAR-009

Casper Mattress Warranty Sag Depth Requirement | Nappedia

Target Query:“casper mattress warranty sag depth requirement”
·
Subject: Casper The Casper Original 11"
Direct Forensic Answer

Query: “casper mattress warranty sag depth requirement”

1.0-Inch Sag Threshold

Direct Answer Summary

The Casper mattress limited warranty requires an unweighted physical indentation of at least 1.00 inch (25.4 mm) on the sleeping surface. The warranty covers physical flaws in the foam causing cracking or splitting, as well as unweighted sagging >= 1.0 inch. Casper explicitly excludes normal increases in foam softness and requires that the mattress be supported continuously by a rigid foundation with slats spaced no wider than 4.0 inches apart.

Audited Core Takeaways

  • 1Requires an unweighted surface depression of 1.00 inch or greater.
  • 210-year limited warranty covering 100% of replacement or repair costs.
  • 3Foundation slats must not exceed 4.0 inches apart with center support.
Interactive Warranty Calculator
Interactive Laboratory View

Warranty Fine-Print & Trial Policy Deconstruction

Calculate proration cliffs, test unweighted sagging ruler thresholds, and verify foundation slat gap compliance before submitting a claim.

Forensic Warranty & Trial Audit • Actuarial Deconstruction

Warranty Proration Cliff & Fine Print Analysis

Mattress warranties advertised as "25-Year" or "Lifetime" typically undergo an actuarial transition into a steep proration cliff after Year 10. Consumer defect claims require rigid straight-edge depth proof and strict foundation compliance.

$1,800
$800$2,000$3,500
Year 12 of 25
Year 1 (New)Year 10 (Cliff Edge)Year 25
Prorated Cliff Active
Casper The Casper Original 11" · Friends for Life Limited Warranty
Customer Out-of-Pocket:
$900.00 (50%)
Manufacturer Coverage: 50% ($900.00)Customer Share: 50% ($900.00)
Proration Schedule Breakdown for Casper:
  • Years 1-10: 100% Non-Prorated. The manufacturer covers 100% of replacement or repair costs ($0 customer copay).
  • Years 11-15: Customer pays 50% of the purchase price ($900.00 on a $1800 mattress).
  • Years 16-20: Customer pays 75% of the purchase price ($1350.00 on a $1800 mattress).
  • Years 21-25: Customer pays 85% of the purchase price ($1530.00 on a $1800 mattress).
  • Round-Trip Freight Surcharge: Optional repair in Year 3+ incurs a mandatory $149 processing fee.
Audited Metrics4 Verified Metrics

Casper The Casper Original 11" Forensic Specifications

Physical construction measurements and laboratory ratings evaluated against regulatory, medical, and durability benchmarks.

Specification / MetricMeasured ValueBenchmark / StandardStatus
Sagging Depth Threshold1.00 Inch Unweighted DepressionDirect-to-Consumer StandardPass
Warranty Term Length10 Years Full ReplacementStandard 10-Year WarrantyPass
Foundation Slat Gap LimitMax 4.0 Inches SpacingPlatform / Slat RequirementPass
Covered DefectsFoam Cracking, Splitting, Sag >= 1.0"Manufacturing Structural FlawsPass

Standards Reference: Benchmarks derived from ASTM D3574 (flexible cellular foam), CPSC 16 CFR 1633 (open flame flammability), and clinical capillary closing thresholds (32.0 mmHg).

Warranty Audit Protocol3 Actionable Steps

Warranty Claim Diagnostic & Measurement Protocol

Unweighted ruler measurement and photographic documentation steps to avoid warranty claim denial.

Document Sagging Depth

Step 1

Position a broom handle across the depression and measure depth with a standard ruler.

Critical Hazard to Avoid

Do not push the ruler down into the foam core; measure to the resting fabric face.

Check Base Slats

Step 2

Measure slat spacing on your bed frame to verify gaps do not exceed 4.0 inches.

Critical Hazard to Avoid

Avoid using flexible curved spring slats that cause premature center sagging.

Prepare Purchase Proof

Step 3

Locate your original Casper order confirmation email and permanent law label photos.

Critical Hazard to Avoid

Secondhand Casper mattresses carry zero transferrable warranty rights.

Authoritative Grounding

Primary Source Regulatory & Engineering Citations

2 Verified Sources

Every factual threshold, dimension, safety standard, and warranty policy cited on this page is derived directly from verified government filings, regulatory standards organizations, or official manufacturer technical documentation.

Casper Sleep Inc.Manufacturer Policy

Casper 10-Year Limited Warranty Agreement

casper.com/warrantyView Source
Federal Trade Commission (FTC)15 U.S.C. § 2301

Magnuson-Moss Warranty Act

www.ftc.gov/legal-library/browse/statutes/magnuson-moss-warranty-federal-trade-commission-improvements-actView Source
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