Nap Duvet Cover

The Nap Duvet Cover is 100% extra-long staple cotton in a percale weave, with a 225 thread count. It is garment-washed before shipping and dyed using non-toxic dyes. The weave follows the Italian "quattro-quaranta" or "4-by-40" construction: 40's single-strand yarn in both the warp and the weft, with 40 threads per centimeter in each direction, producing a balanced, durable fabric.

Nap is MATTEO's best-selling hotel fabric. Its "quattro-quaranta" percale weave produces a crisp, lightly starched finish comparable to what you find in high-end hotel bedding, and the 100% extra-long staple cotton construction holds up to repeated commercial-grade laundering. The 225 thread count is intentional: the balanced 4-by-40 structure delivers durability and softness that higher thread counts in lesser yarns cannot match.

Thread count measures the number of threads per square inch, but the count alone does not determine quality. Nap uses a true single-strand 40's yarn in a 4-by-40 percale structure: 40 threads per centimeter in both the warp and the weft. Inflated thread counts are typically achieved by twisting multiple thinner plies together and counting each ply separately. The Nap fabric's 225 count reflects an honest weave with no shortcuts, and the extra-long staple cotton fiber length is what gives it longevity and the ability to grow softer with each wash.

The Nap Duvet Cover is cut generously to accommodate most standard inserts. For a Cal-King bed, MATTEO recommends the King size (108 x 94 inches / 274 x 239 cm). For a Full bed, the Queen size (90 x 94 inches / 229 x 239 cm) is the right choice. The Twin size measures 71 x 86 inches (180 x 218 cm). Always check your insert dimensions against these measurements to confirm the fit you prefer.

The Nap Duvet Cover has a classic 2-inch flange along the edge and a hidden zipper closure. Both details are consistent with the clean, minimal construction MATTEO uses across its cotton collection. The flange adds a subtle framed border without requiring additional shams or decorative layers.

Wash the Nap Duvet Cover in lukewarm water with a gentle detergent and a cool rinse, separating light and dark colors. Do not overload the machine, as excess compression can stress the long cotton fibers. Tumble dry on low heat and remove promptly to reduce wrinkling; line drying gives the best results. If you have a garment-dyed colorway, avoid chlorine bleach, alpha hydroxy acids, and benzoyl peroxide, as the reactive dyes used in garment-dyeing are not resistant to those agents. Bleach is safe only on white cotton versions.

Nap is dyed exclusively with non-toxic dyes, and the garment-washing process removes residual finishing chemicals before the cover reaches you. The 100% extra-long staple cotton percale is free of synthetic fiber blends, which reduces the friction and heat retention that can irritate sensitive skin. It softens further with each wash, so texture only improves over time.

The Nap Duvet Cover is well-suited for a wedding registry. It is available in 14 colors, from White and Off White to deeper tones like Coal and Night, and the hotel-grade percale construction means it will hold up for years of daily use. The 2-inch flange and hidden zipper give it a considered, finished look that reads as a deliberate design choice rather than a standard cover. MATTEO designs and manufactures in Los Angeles, and fabric swatches are available if you want to coordinate with other pieces before committing to a color.