GOTS-certified organic cotton sheds zero microplastic fibers — unlike polyester sheets, which release thousands of synthetic particles every night.

Long-staple organic cotton sheets that Boll & Branch states are GOTS certified and Fair Trade — the premium end, where the certification covers the whole supply chain rather than just the finished fabric.
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Microfiber and polyester sheets are plastic textiles, and washing them is one of the largest household sources of microplastic fiber. These are 100 percent cotton — a plant fiber, with no polyester blended in for wrinkle resistance and no resin finish on top.
What these are made of: cotton fiber, certified organic through the whole chain. No polyester blend, no easy-care finish.
Avoid microfiber and polyester sheet sets, and avoid "wrinkle-free" cotton, which usually means a resin finish on the fabric. Microfiber is the specific thing to replace here: it is plastic fabric, it sheds with every wash, and it is what most cheap sheet sets are.
Straight answer: we're a research team, not a testing lab. Here's exactly what our rating is based on — and what it isn't — so you can weigh it honestly.
Anything that adds a known microplastic, PFAS, or off-gassing source — a non-stick coating, a plastic surface against food or skin, vinyl/PVC — is downgraded or cut. We only list what clears that bar.
GOTS-certified organic cotton sheds zero microplastic fibers — unlike polyester sheets, which release thousands of synthetic particles every night.
GOTS and Fairtrade certified organic cotton in a 300 thread count sateen — the mid-price way into certified organic bedding with no synthetic fiber in it.
GOTS certified organic cotton sateen sheets that Delilah Home states are made in Portugal and verified by Vegan.org — European manufacture with the certification stack published rather than implied.
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