U.S. Consumer Product Safety Commission (CPSC)
Standard for the Flammability of Mattress Sets
16 CFR Part 1633
Serta Perfect Sleeper Fiberglass Law Tag Test
Comprehensive law tag analysis and fire barrier test of Serta Perfect Sleeper FireBlocker technology.
100% Fiberglass-Free
Direct answer summary
The Serta Perfect Sleeper does not contain fiberglass. Serta uses its proprietary FireBlocker system, which consists of an engineered blend of natural cellulosic and synthetic fibers (rayon, polyester, and modacrylic). In CPSC 16 CFR Part 1633 testing, FireBlocker fibers swell and carbonize upon heat exposure, creating an airtight thermal shield that starves fire of oxygen without shedding crystalline mineral glass fibers.
Key points
FireBlocker barrier consists of cellulosic rayon, polyester, and modacrylic fibers.
Contains zero hazardous continuous-filament glass fiber or crystalline silica.
Certified under CertiPUR-US guidelines for low VOC emissions and foam safety.
Interactive example
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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 | Serta FireBlocker Fiber Blend | Fiberglass-Free Formulation | pass |
| Flammability Standard | 16 CFR Part 1633 Compliant | Peak HRR < 200 kW in 30 min | pass |
| Foam Certification | CertiPUR-US Certified | VOC < 0.5 mg/m3 | pass |
| Law Label URN Registration | REG. NO. OH-004312 (OH) | Active Serta Simmons Facility | 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
Locate Serta Law Tag
Find the white Tyvek tag stitched into the lower binding at the foot of the bed.
Watch for: Never tear off the permanent statutory bedding label.
- 02
Audit FireBlocker Disclosure
Confirm that all materials are listed as all-new cellulosic and synthetic fibers.
Watch for: Never wash the quilted mattress topper in household laundry machines.
- 03
Check Seam Integrity
Inspect tape-edge stitching along all four corners for secure thread tension.
Watch for: Avoid pulling loose threads that could unravel perimeter seams.
Sources
Sources for this answer
Read the source documents behind the thresholds, measurements, and policy details used here.
View source
Alliance for Flexible Polyurethane Foam
CertiPUR-US Technical Guidelines
CertiPUR-US VOC Limits