CERTIFICATIONS & TESTING
Proof over promises.
When we make a claim about what touches your skin, we want you to understand what sits behind it. These are the independent standards our materials are tested and certified against.
ALL YUKI PRODUCTS
OEKO-TEX® Standard 100
OEKO-TEX® Standard 100 is one of the world's most recognized independent testing systems for textiles. Products carrying this label have been tested for over 100 harmful substances — including heavy metals, pesticides, phthalates, formaldehyde, and certain flame retardants.
The testing doesn't just cover the raw fiber. It covers the finished product — the fabric that actually touches your skin, after dyeing, finishing, and sewing. This matters because chemicals can be introduced at any stage of production.
The standard is issued by independent textile research institutes and requires annual renewal and re-testing. It is not a self-certification.
WHAT IT MEANS FOR YOU
✓ Tested free of harmful substances
✓ Covers the finished product
✓ Independently verified
✓ Renewed and re-tested annually
Lyocell Bamboo Viscose Cotton-Linen
CLASSIC CLOUD & ULTRA COOL CLOUD
FSC™ Certified Source
The eucalyptus wood pulp used to produce our lyocell fiber comes from FSC™ (Forest Stewardship Council) certified sources. FSC™ certification means the forests are managed responsibly — maintaining biodiversity, benefiting local communities, and ensuring long-term ecological health.
The FSC™ chain of custody tracks the wood from forest to fiber, ensuring the certified source claim can be traced back through the supply chain.
Lyocell products only
LYOCELL PRODUCTION
Closed-Loop Production
The lyocell fiber used in our Classic Cloud and Ultra Cool Cloud products is produced using a closed-loop manufacturing process. The non-toxic solvent used to dissolve the eucalyptus pulp is recovered and recycled at a rate of over 99%.
This process uses significantly less water than conventional cotton production, generates minimal waste, and avoids the harmful chemical baths used in traditional viscose manufacturing.
99%+ solvent recovery Non-toxic solvent Low water use
What we don't claim
Transparency means being honest about what we can prove and what we can't. We do not claim certifications we haven't earned, and we clearly state which products each standard applies to.
If a certification applies to one product line but not another, we say so. If a standard is in progress, we won't list it until it's verified.
Certification details are verifiable through the respective issuing bodies. If you'd like to verify any claim made on this page, contact us at support@yukisleep.com and we'll provide the documentation.