NAICS Code 337910 — Mattress Manufacturing

National Industry in the official 2022 North American Industry Classification System (U.S. Census Bureau). It is the only national industry under 33791 (Mattress Manufacturing).

Code	337910
Title	Mattress Manufacturing
Level	National Industry (6-digit)
Edition	NAICS 2022 edition
SBA size standard	1,000 employees

Official definition (2022 NAICS)

This industry comprises establishments primarily engaged in manufacturing innerspring, box spring, and noninnerspring mattresses.

Is a business under 337910 "small"?

Under the SBA size standards (13 CFR 121.201, effective March 17, 2023), a business classified in NAICS 337910 qualifies as a small business if it does not exceed 1,000 employees. Small-business status determines eligibility for federal set-aside contracts, SAM.gov certifications and SBA loan programs — employee count is averaged over the latest 24 months.

Where 337910 sits in the hierarchy

Level	Code	Title
Sector	31-33	Manufacturing
Subsector	337	Furniture and Related Product Manufacturing
Industry Group	3379	Other Furniture Related Product Manufacturing
NAICS Industry	33791	Mattress Manufacturing
National Industry	337910	Mattress Manufacturing

Related SIC codes

Via the official U.S. Census concordance (1987 SIC ↔ NAICS), shown only where the industry definition is unchanged in NAICS 2022.

SIC code	Title
2515	Mattresses, Foundations, and Convertible Beds

Data: official 2022 NAICS structure, descriptions and Census concordances, U.S. Census Bureau — U.S. government works in the public domain (17 U.S.C. §105). Suggested reference, not an official determination.