Why the fiber matters more than the thread count
Thread count is the most-quoted and least-useful number in bedding. Past about 400, manufacturers reach the number by twisting multi-ply yarns together, which produces a denser, heavier, warmer sheet — the opposite of what most people want. What actually determines how a sheet sleeps is the fiber it is made from and how that fiber is woven.
Tencel is the brand name for lyocell produced from sustainably harvested eucalyptus pulp in a closed-loop process that recovers and reuses more than 99 percent of its solvent. The resulting fiber is smooth at a microscopic level, which is why it feels slick rather than fuzzy, and it is naturally hydrophilic — it absorbs and releases moisture faster than cotton. On a warm night, that means sweat moves off your skin and evaporates instead of sitting in the fabric.
