Organic Cotton Sateen Fitted Sheet

The fitted sheet is 100% Egyptian cotton in a sateen weave, 300 thread count, woven with pure 60's yarn in both warp and weft. It is garment-washed in MATTEO's Los Angeles dye-house using a special washing process that produces a silky-smooth hand without the need for ironing. The organic cotton sateen gets softer with each wash rather than breaking down over time.

The 16-inch pockets fit mattresses up to 20 inches deep. The elastic band spans the full perimeter of the sheet and is encased in a high-density stitch at the bottom seam, so it holds its grip through years of use without losing tension. Sizes range from Twin (39 x 75 x 16 inches) through California King (72 x 84 x 16 inches).

300 thread count in a sateen weave produces a fabric that is dense enough for a smooth, lustrous face while still breathing well through the night. Thread count measures weave density, not raw fiber quality; the Egyptian cotton used here is woven with 60's yarn, which is a finer yarn count that contributes more to softness than a higher thread count woven from coarser fiber would. At MATTEO, thread count is one factor among several, alongside yarn quality, weave balance, and finishing process.

Wash light and dark colors separately in a lukewarm cycle with a gentle detergent and a cool rinse; do not overload the machine, as excess pressure damages long cotton fibers. Tumble dry on low heat and remove promptly to minimize wrinkling, or line dry for best results. Bleach is safe on white cotton only; avoid whitening agents such as chlorine bleach, alpha hydroxy acids, or benzoyl peroxide on garment-dyed colors, as the reactive dyes used in garment-dyeing are not resistant to these agents. For a crisp finish, press while slightly damp on the Lightweight Cotton or Medium iron setting.

Garment-dyeing is an artisanal process, not an industrial one. MATTEO allows for a shade variation of plus or minus 10% between dye lots, which means two sheets ordered in the same color at different times may read as slightly different tones. This is a natural result of reactive dye chemistry and is consistent with how hand-finished textiles behave. Learn more about MATTEO's garment-dyeing process.

Cotton sateen uses a float weave where more yarn faces up, producing a smooth, subtly lustrous surface that feels warmer and slides easily against skin. Percale uses a one-over-one-under plain weave that is crisper, cooler, and matte. The 300 thread count organic sateen fitted sheet from MATTEO is garment-washed, which relaxes the sateen's natural sheen into a softer, lived-in drape that sits between the two in terms of crispness.

The sheet is 100% Egyptian cotton with no synthetic fibers, washed and dyed with non-toxic reactive dyes in MATTEO's dye-house. The garment-washing process removes surface sizing and softens the yarn before the sheet reaches your bed, reducing the friction that can irritate sensitive skin. White and undyed options are available for those who want to avoid dye contact entirely.

The fitted sheet is available in Twin (39 x 75 x 16 inches), Twin XL (dimensions follow the extended length standard), Full (54 x 75 x 16 inches), Queen (60 x 80 x 16 inches), King (78 x 80 x 16 inches), and California King (72 x 84 x 16 inches). All sizes share the same 16-inch pocket depth and flat felled corner construction. The corners are tacked down at the top to reinforce the areas that receive the most wear.