At a glance
| Chemical family | Alkylphenol — endocrine-disrupting surfactant breakdown product |
| CAS number | 25154-52-3 |
| Classification | EU SVHC (Substance of Very High Concern); endocrine disruptor; REACH restricted; toxic to aquatic organisms |
| Where you encounter it | Residual on sheets, mattress ticking, and covers from textile scouring and dyeing; breakdown product of nonylphenol ethoxylates (NPEs) used as industrial surfactants |
| Sleep micro-environment relevance | Not intentionally added to bedding — enters via the supply chain. Dermal contact with treated textiles is the primary bedroom exposure route |
Regulatory & certification status
| European Union | SVHC (Candidate List). REACH Annex XVII Entry 46a restricts nonylphenol and NPEs in textiles at ≥0.01% by weight (100 mg/kg) of each substance — measured in the finished article that can reasonably be washed. Enforced since February 2021. Regulatory — European Union authority |
| United States | No federal textile restriction. California Proposition 65 lists nonylphenol (CAS 25154-52-3) as a reproductive toxicant (female). EPA conducted a Work Plan Assessment (2014); no TSCA ban. Washington State lists NP as a Chemical of High Concern to Children. Regulatory — United States authority |
| Canada | Nonylphenol and its ethoxylates are listed as toxic under CEPA Schedule 1. The Textile Effluent Regulations indirectly limit discharge. No direct restriction on NP content in finished textiles sold to consumers. Regulatory — Canada authority |
| Certifications | OEKO-TEX Standard 100 restricts alkylphenols (NP + OP) to ≤10–100 mg/kg depending on product class. ZDHC MRSL bans NPEs/NP in textile manufacturing (zero intentional use). AFIRM RSL restricts NPE/NP in finished articles. Industry |
What it is
Nonylphenol is a synthetic organic compound and the primary degradation product of nonylphenol ethoxylates (NPEs), which are industrial surfactants used in textile wet-processing. NPEs were widely used because they are cheap, effective detergents and emulsifiers. The problem is what they break down into: nonylphenol is a persistent endocrine disruptor that mimics oestrogen, is toxic to aquatic life, and bioaccumulates. It does not evaporate or wash out easily once fixed to fabric.
Where it shows up in bedding
Nonylphenol enters bedding products as a processing residual. Textile mills use NPE-based surfactants during scouring (removing natural waxes from raw cotton or wool), dyeing, and finishing. After wastewater treatment or simple rinsing, NPEs degrade to nonylphenol, which adsorbs onto fibre surfaces. Studies have detected NP on finished garments and home textiles imported into the EU. In the bedroom context, sheets, pillowcases, mattress covers, and upholstered headboard fabrics are the most likely carriers.
Citations
- ECHA. Substance Information: 4-Nonylphenol, branched and linear. European Chemicals Agency. Source Regulatory
- European Commission (2016). REACH Annex XVII Entry 46a — Restriction of nonylphenol ethoxylates in textile articles. Regulatory
- Environment and Climate Change Canada. Nonylphenol and its Ethoxylates — Risk Management. Source Regulatory
Frequently asked questions
Is nonylphenol in my sheets?
Possibly, if they were manufactured using NPE-based surfactants and not tested for residuals. The EU restricts NP/NPE in textiles above 100 mg/kg — so compliant European-market products should be below that threshold. Products manufactured for markets without NP restrictions, or sourced from supply chains that still use cheap NPE surfactants, are more likely to carry detectable residuals. OEKO-TEX and ZDHC-compliant supply chains screen for it.
How do I avoid nonylphenol in bedding?
Look for textiles certified under OEKO-TEX Standard 100, GOTS, or sourced from ZDHC-compliant mills — all of these restrict or ban NPEs in processing. The EU REACH restriction means products legally sold in the EU are tested. Outside the EU, asking suppliers for an NPE-free declaration or RSL compliance is the practical step.
Related compounds
Embr is a sleep environment company researching and addressing the chemistry of the bedroom. Research and product development in progress.
Last reviewed 2026-07-07. If you find a factual error, contact us.