U.S. Mattress Brand Evidence Profile

Does a Plank Mattress Mattress Have Fiberglass? (Law Tag & Material Teardown)

Independent analysis of Plank Mattress: operating parent company 3Z Brands / Brooklyn Bedding, manufacturing facilities in 3Z Desert Mega-Factory (Glendale, AZ - 900,000 sq ft) & Phoenix Custom Plant, Uniform Registry Number (URN: AZ-48201, AZ-51029), and 2026 flammability barrier safety disclosures.

Flammability & Safety Forensics

2026 Fiberglass Determination: NO (Clean 2026)

Fire Barrier Material:

Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)

Switch Year / Phase-Out Date:

Phased out glass fiber by late 2023 / early 2024 across all production lines

Physical Law Tag Disclosures:

Law Tag Disclosure: DO NOT REMOVE COVER / Inherently Flame-Retardant Rayon Barrier | Zero active class actions; certified compliance with CPSC 16 CFR Part 1633

Litigation & Compliance Status:

Clean Record

Manufacturing & Industrial Geography

Factory Footprint & Ownership Lineage

Operating Parent / OEM:

3Z Brands / Brooklyn Bedding (Founded 2019)

Manufacturing Model:

Vertically Integrated DTC Mega-Plant · 100% Made in USA

Physical Plant Locations:

3Z Desert Mega-Factory (Glendale, AZ - 900,000 sq ft) & Phoenix Custom Plant

Uniform Registry Number (URN):

AZ-48201, AZ-51029

Evidence Citation: Corporate Factory Tour & Industrial Development Filings (Verified Source URL ↗)

Complete Model Lineup

All 4 Documented Models (3 Active, 0 Legacy)

Active (Aug 2026) · Innerspring & Pocket Coil

Plank Mattress Plank Firm Original (Medium-Firm)

Series: Plank Firm Original · Innerspring (Zoned Pocket Coils) (10" profile)

Feel: Medium-Firm (6.5/10) · MSRP: $1,299

ZERO RISK

Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)

Active (Aug 2026) · Innerspring & Pocket Coil

Plank Mattress Plank Firm Luxe (Plush)

Series: Plank Firm Luxe · Innerspring (Zoned Pocket Coils) (11" profile)

Feel: Plush (4.5/10) · MSRP: $1,449

ZERO RISK

Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)

Active (Aug 2026) · Innerspring & Pocket Coil

Plank Mattress Plank Natural (Firm)

Series: Plank Natural · Innerspring (Zoned Pocket Coils) (12" profile)

Feel: Firm (7.5/10) · MSRP: $1,599

ZERO RISK

Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)

Active (Aug 2026) · Innerspring & Pocket Coil

Plank Mattress Plank Firm Original (Medium)

Series: Plank Firm Original · Innerspring (Zoned Pocket Coils) (13" profile)

Feel: Medium (5.5/10) · MSRP: $1,749

ZERO RISK

Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)