ASTM F2933-25 PDF

Full title and description

ASTM F2933-25 — Standard Consumer Safety Specification for Crib Mattresses. This specification establishes design and performance requirements, test methods, marking and labeling requirements for full‑size and non‑full‑size crib mattresses and certain after‑market mattresses (including play yard and bassinet accessories).

Abstract

This consumer safety specification sets minimum safety, dimensional, and performance criteria and prescribes repeatable test methods for crib mattresses. It covers calibration/standardization, impact and durability testing, dimensional requirements for full‑size and non‑full‑size mattresses, labeling/marking, and requirements for after‑market mattresses intended for play yards and bassinets.

General information

• Status: Active; incorporated by the U.S. Consumer Product Safety Commission (with retained modifications) as the mandatory crib mattress standard effective May 3, 2026.
• Publication date: Published/approved in 2025 (ASTM notified the CPSC of the F2933-25 revision on November 4, 2025).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: ICS 97.140 (Furniture).
• Edition / version: F2933‑25 (2025 revision).
• Number of pages: 14 pages (base specification).

Scope

The specification applies to full‑size and non‑full‑size crib mattresses and after‑market mattresses intended for play yards and non‑full‑size cribs, including bassinet accessories for play yards. It defines performance and labeling requirements and specifies test methods and calibration procedures to assess compliance; manufacturers may not claim compliance for products produced after the approval date unless the product meets all requirements.

Key topics and requirements

• Design and dimensional requirements for full‑size and non‑full‑size crib mattresses (including dimensional tolerances and corner/sheet gap considerations).
• Performance and durability tests to assess mattress integrity under simulated use (impact, cyclic loading, vertical displacement, etc.).
• Specific testing and performance requirements for after‑market mattresses used in play yards and bassinets; references to related test standards (e.g., ASTM F406, ASTM F2194) for certain play‑yard and bassinet requirements as retained by regulators.
• Labeling and marking requirements covering warnings, size designation, and instructions for safe use and fit.
• Clarifications and updated test methods intended to improve repeatability and reproducibility of results.

These topics and the test method updates are documented in the ASTM revision and in the CPSC rulemaking record adopting the revision with specific retained modifications.

Typical use and users

Primary users include mattress and nursery product manufacturers, compliance and test laboratories, product safety engineers, regulatory affairs personnel, retailers of infant sleep products, and government safety/regulatory bodies. The standard is used to design, test, certify, label, and enforce safety for crib and play‑yard mattresses.

Related standards

Closely related standards and regulations include: ASTM F406 (play yards), ASTM F2194 (bassinets/bassinet pads), and the U.S. mandatory regulation 16 CFR part 1241 (which incorporates ASTM F2933 with CPSC modifications). The 2025 revision of F2933 updates references and test-method cross‑requirements for after‑market and play‑yard applications.

Keywords

crib mattress, mattress safety, infant sleep products, performance testing, labeling, ASTM F2933, play yard mattress, after‑market mattress, CPSC incorporation.

FAQ

Q: What is this standard?

A: ASTM F2933‑25 is the 2025 revision of the consumer safety specification that sets design, performance, testing, and labeling requirements for crib mattresses (full‑size and non‑full‑size) and certain after‑market mattresses for play yards and bassinet accessories.

Q: What does it cover?

A: It covers dimensional criteria, performance/durability test methods, calibration and standardization procedures, marking and labeling requirements, and specific requirements for after‑market mattresses used in play yards and bassinet attachments. The revision includes new/clarified definitions, updated test methods, and additional performance requirements intended to improve test repeatability and safety.

Q: Who typically uses it?

A: Mattress manufacturers, product designers, test labs, regulatory and compliance teams, retailers, and government safety agencies use the standard to design, test, certify, and regulate crib and play‑yard mattresses.

Q: Is it current or superseded?

A: As of the CPSC rulemaking record, ASTM F2933‑25 (the 2025 revision) is the current ASTM edition and was incorporated by the U.S. CPSC (with retained modifications) as the mandatory crib mattress standard effective May 3, 2026. Products manufactured after that effective date must meet the mandatory requirements.

Q: Is it part of a series?

A: The standard is maintained by ASTM’s F15 committee (subcommittee F15.66 for mattresses/infant sleep surfaces) and follows previous editions (for example F2933‑21). The 2025 revision replaces the earlier voluntary F2933‑21 text for purposes of ASTM documentation and regulatory consideration.

Q: What are the key keywords?

A: Key keywords include crib mattress, infant mattress, safety specification, test methods, labeling, after‑market mattress, play yard mattress, ASTM F2933, and mattress performance.