100% Long Staple Cotton, Sateen Weave Winner of the 2026 Good Housekeeping Best Bedding Award - 6-Piece Sateen Sheet Set with 4 pillowcases: Each king size bed sheets set comes with 1 Flat Sheet (112" W x 102" L), 1 Fitted Sheet (78" W x 80" L + 16" Deep Pocket), and 4 Roomy Pillowcases (21" W x 36" L with envelope closure). California Design Den 400 thread count our fine bed cotton sheets are strong and durable. Independently tested to earn the prestigious Good Housekeeping Seal. Savor Your Sleep: Rest in the soft and most breathable 100% long-staple cotton. Our sheets for king size bed in 400 thread count 100 % cotton sheets are carefully handcrafted and firmly stitched for lasting durability. Comfortable Everyday Comfort: Our fitted deep pocket king bed sheets provide a snug fit. The smooth and comfortable bed sheets make this your comfortable bedding set. The smart head & foot tag helps simplify making the bed. No Harmful Substances & Easy to Maintain: It’s easy to take care of our 100% cotton sheets. Toss them in a machine for a quick wash. These king sheet sets become softer with every rinse—and are tested for fading, shrinkage, pill, and fade. Every item bearing the OEKO-TEX STANDARD 100 label is certified as having passed safety tests for harmful substances. Our Commitment: We prioritize comfort, community, and sustainability. Since 2022, we've donated over 56,000 bedding items to US charities and removed plastic from our packaging. Sheets are crafted in our family‑owned factory in India with care and quality‑checked—thread count may vary by ±5% due to standard manufacturing limits. Thoughtfully crafted for everyday comfort. Upgrade your bedding experience with our Good Housekeeping Award Winner 400 Thread Count Sheet Set. Crafted from 100% long-staple cotton, these sheets offer the balanced blend of softness, strength, and breathability, designed to support a calm and comfortable sleep experience. These sheets are designed to provide durability and softness. The sateen weave enhances the fabric's natural sheen and smooth texture. With a 400 thread count, these sheets strike a refined balance between comfort and quality, offering a silky-smooth feel against your skin. The fitted sheet features deep pockets that easily accommodate mattresses up to 16 inches deep, helping provide a snug, secure fit. The all around premium elastic keeps the sheet in place all night long. The natural cotton fibers offer a soft, breathable feel for comfortable sleep. Crafted from breathable cotton with a smooth sateen weave, these sheets offer a comfortable, versatile feel designed for year-round use. The breathable cotton fabric helps in maximum comfort in any climate. Available in a variety of colors and patterns, our sheet set adds a touch of elegance to any bedroom decor.