U.S. Consumer Product Safety Commission (CPSC)
Standard for the Flammability of Mattress Sets
16 CFR Part 1633
Sealy Posturepedic Fiberglass in Mattress Cover Audit
Review of Sealy Posturepedic Plus flame barrier construction, FlameGuard fiber, and law tag disclosures.
100% Fiberglass-Free
Direct answer summary
Modern Sealy Posturepedic mattresses do not contain loose or frangible fiberglass in their covers. Tempur-Sealy utilizes a proprietary flame-retardant fiber system known as FlameGuard, composed of modacrylic and cellulosic rayon fibers infused with amorphous silica. When exposed to the intense heat of CPSC 16 CFR Part 1633 burners, FlameGuard fibers expand and char, forming a thermal barrier that blocks flame penetration.
Key points
FlameGuard technology utilizes modacrylic and silica-viscose fiber blends.
Contains zero continuous glass filament or frangible glass needle felt.
Manufactured across domestic Tempur-Sealy plants under strict quality audits.
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Verified Law Label
Interactive Visual Tool
Law Label & Material Audit
Inspect the physical law label tag, decode the state Uniform Registry Number (URN), and review certified material percentages under CPSC 16 CFR Part 1633.
What the law tag tells you
Uniform Law Label & Material Deconstruction
Under FTC 16 CFR Part 303 and IABFLO uniform law label standards, bedding manufacturers must disclose exact net filling weights using standardized generic fiber terms. Marketing buzzwords are prohibited under federal penalty.
▲ Sewn Into Seam (Tyvek Substrate) ▲
UNDER PENALTY OF LAW THIS TAG NOT TO BE REMOVED EXCEPT BY THE CONSUMER
ALL NEW MATERIAL CONSISTING OF
POLYURETHANE FOAM PAD55%
RESIN-TREATED COTTON BATTING25%
RAYON FIBER / WOOL CHAR BARRIER20%
Net Filling Weight (Excluding Steel Springs)
Uniform Registry Number (Click to decode)
REG. NO. UT-12345 (FL)
Certification is made by the manufacturer that the materials in this article are described in accordance with law.
Manufacture Date:04/2026
Plant Facility:Tampa, FL
Legal Entity:Saatva Inc. / Bedding Industries of America (BIA)
16 CFR Part 1633 Prototype: STV-115-HYB-2026Inspect →
Physical Tag Dimensions: 2.75" × 3.75" (Meets IABFLO 2.5" × 3.0" min)
What the tag number means
REG. NO. UT-12345 (FL)
Issuing State
UT (Utah)
Registry Sequence
#12345
Plant Location
FL (Florida)
IABFLO 31-State Reciprocity: The issuing state (UT) participates in the Uniform Law Label system. This single registration permits lawful commercial distribution across all 31 regulated US bedding jurisdictions without duplicate state tags.
Specifications
Recorded specifications
Values and benchmarks recorded for this question.
| Specification | Measured value | Benchmark | Status |
|---|---|---|---|
| Flame Barrier Technology | FlameGuard Modacrylic / Silica Rayon | Non-Fiberglass Polymeric | pass |
| 16 CFR 1633 Compliance | Calorimeter Certified (<200 kW Peak) | Statutory Flame Resistance | pass |
| Law Label URN Registration | REG. NO. NC-001234 (TX) | Active TSI Manufacturing Plant | pass |
| Core Coil Support | Response Pro HD Encased Coils | High-Tensile Tempered Steel | pass |
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).
Checklist
Consumer Safety & Chemical Verification Protocol
Step-by-step physical inspection procedure for flame barrier integrity and law label compliance.
- 01
Inspect Foot-End Law Tag
Locate the permanent TSI law tag stitched into the lower tape-edge seam.
Watch for: Do not attempt to machine-wash the quilted euro-top panel.
- 02
Examine Quilted Ticking
Verify that surface knit contains clean polyester and cotton without fiber leakage.
Watch for: Never puncture the inner quilted FlameGuard barrier layer.
- 03
Check Manufacturer URN
Confirm URN maps to authorized Tempur-Sealy production facilities in TX, NC, or OH.
Watch for: Beware of re-covered liquidation beds with counterfeit labels.
Sources
Sources for this answer
Read the source documents behind the thresholds, measurements, and policy details used here.
View source
Federal Trade Commission (FTC)
Textile Fiber Products Identification Act
16 CFR Part 303