deep sheet

Fitted-sheet pocket depths range from about 10 inches up to 22 inches, with many options commonly sized for 12–18 inch mattresses and some going as deep as 22 inches.

Deep-pocket sets are offered in microfiber (100% polyester) and several 100% cotton constructions, including sateen, percale, flannel, plain weave, and knitted cotton.

Listings typically include standard mattress sizes: Twin (including Twin XL), Full, Queen, King, and California King.

Thread counts across listings range roughly from 90 to 300, with common values including 90, 96, 170, 200, 220, and up to 300.

Common features include fully elasticized (all-around elastic) fitted sheets and reinforced elastic at the corners to provide a snug, secure fit on deep mattresses.

Many listings specify machine wash and tumble dry for easy care; always follow the product’s care label for best results.

Breathable constructions like cotton percale promote airflow, and some sets are described as temperature-regulating and moisture-wicking to help sleepers stay cooler.

Common pillowcase dimensions shown include 30 x 20 in, 32 x 21 in, 40 x 20 in, and larger king sizes such as 42 x 21 in.

Many sets are offered as either 3-piece or 4-piece collections, so you’ll commonly see both options.

Some listings carry OEKO-TEX certifications, including OEKO-TEX STANDARD 100 and OEKO-TEX MADE IN GREEN.