U.S. Mattress Brand Evidence Profile
Kirkland Signature (Costco) Mattresses: 2026 Models, Factory URN & Fiberglass Evidence
Independent forensic analysis of Kirkland Signature (Costco): operating parent company Costco Wholesale Corporation (OEM: Stearns & Foster / TSI), manufacturing facilities in Certified Domestic Bedding Fabrication Facility (Issaquah, Washington, USA), Uniform Registry Number (URN: State Bedding License (Issaquah, Washington, USA)), and 2026 flammability barrier safety disclosures.
Flammability & Safety Forensics
2026 Fiberglass Determination: NO (Clean 2026)
Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Phased out glass fiber by late 2023 / early 2024 across all production lines
Law Tag Disclosure: DO NOT REMOVE COVER / Inherently Flame-Retardant Rayon Barrier | Zero active class actions; certified compliance with CPSC 16 CFR Part 1633
Clean Record
Manufacturing & Industrial Geography
Factory Footprint & Ownership Lineage
Costco Wholesale Corporation (OEM: Stearns & Foster / TSI) (Founded 1983)
Regional / Contract Co-Packer Fabrication · Made in USA from Domestic & Imported Materials
Certified Domestic Bedding Fabrication Facility (Issaquah, Washington, USA)
State Bedding License (Issaquah, Washington, USA)
Evidence Citation: State Bedding Registration & Official Corporate Disclosure (Verified Source URL ↗)
Complete Model Lineup
All 16 Documented Models (5 Active, 0 Legacy)
All Kirkland Signature Mattresses are 100% Costco Exclusives
Series: Handcrafted Natural Fiber Collection · Exclusive Retail Specification (11.5" profile)
Feel: Medium (6.5/10) · MSRP: $1,299
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature 13 Inch Hybrid Innerspring with Gel Memory Foam
Series: Kirkland Signature Hybrid Line Collection · Hybrid (13" profile)
Feel: Medium (5.5/10) · MSRP: $899
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Hope Bay
Series: Handcrafted Natural Fiber Collection · Dual-Stage Coil Innerspring (14" profile)
Feel: Firm (7.5/10) · MSRP: $999
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Hope Bay 14.5 Inch Firm
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (14.5" profile)
Feel: Firm (8.0/10) · MSRP: $1,099
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Hope Bay 14.5 Inch Plush
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (14.5" profile)
Feel: Medium-Soft (4.5/10) · MSRP: $1,099
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Lakeridge
Series: Handcrafted Natural Fiber Collection · Hybrid Innerspring (2044 IntelliCoil Springs + Foam) (14.5" profile)
Feel: Medium (6.5/10) · MSRP: $1,099
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Lakeridge 14.5 Inch Firm
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (14.5" profile)
Feel: Firm (7.5/10) · MSRP: $1,199
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Lakeridge 14.5 Inch Luxury Firm
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (14.5" profile)
Feel: Medium-Firm (6.5/10) · MSRP: $1,199
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Lakeridge 14.5 Inch Plush
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (14.5" profile)
Feel: Soft (4.0/10) · MSRP: $1,199
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Stearns & Foster Signature Eurotop 15 Inch
Series: Kirkland Stearns & Foster Line Collection · Pocket Coil (15" profile)
Feel: Soft (4.0/10) · MSRP: $1,299
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Tempur-Pedic 10 Inch Supreme Memory Foam
Series: Kirkland Tempur-Pedic Line Collection · Memory Foam (10" profile)
Feel: Medium (6.0/10) · MSRP: $1,499
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Tempur-Pedic 10" / 12"
Series: Handcrafted Natural Fiber Collection · Original TEMPUR Material All-Foam (12" profile)
Feel: Medium (5.5/10) · MSRP: $1,999
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Tempur-Pedic 12 Inch Supreme Memory Foam
Series: Kirkland Tempur-Pedic Line Collection · Memory Foam (12" profile)
Feel: Medium-Soft (4.5/10) · MSRP: $1,799
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature by Tempur-Pedic Contour Elite Supreme 12.5 Inch
Series: Kirkland Tempur-Pedic Line Collection · Memory Foam (12.5" profile)
Feel: Firm (7.5/10) · MSRP: $1,999
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature Chapman by Stearns & Foster
Series: Handcrafted Natural Fiber Collection · Innerspring (11.5" profile)
Feel: Medium (6.5/10) · MSRP: $1,299
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)
Kirkland Signature Classic Innerspring (Pre-2017)
Series: Handcrafted Natural Fiber Collection · Innerspring (12" profile)
Feel: Medium (6.5/10) · MSRP: $1,299
Fire Barrier: Inherently Flame-Resistant Viscose Rayon infused with Hydrated Silica (Glass-Free)