California Design Den 3 Pc Oversized King Duvet Cover Set | 400TC Cotton Sateen | Good Housekeeping Seal 2025 | White

Experience the luxury of 400-thread-count 100% cotton sateen with the California Design Den 3 Piece Oversized King Duvet Cover Set in crisp white. Independently tested to earn the Good Housekeeping Seal and awarded Best Bedding 2025, this set blends durability with a silky, luminous finish that enhances any bedroom.

The oversized king dimensions (duvet cover 120" wide x 98" long) are designed to accommodate a variety of comforters while keeping the bed looking tailored. The two pillow shams measure 21" x 37" to fit standard king pillows, and the set is designed to coordinate with other items in the same fabric (sold separately).

Care and longevity matter: the duvet cover is machine washable and dryable at home, with a simple button closure and internal corner ties that keep your insert neatly in place. The OEKO-TEX STANDARD 100 certification confirms safety from harmful substances, so you can enjoy daily use with confidence.

Beyond practical benefits, the fabric’s sateen weave delivers a subtle sheen and minimal wrinkles, creating a clean, elegant look that flatters any décor—from coastal to modern minimalist. The result is a fresh, hotel-like vibe that can elevate daily routines without sacrificing comfort.

Practical features and a thoughtful footprint make this set appealing: the button closure provides easy changes, the internal ties help secure the duvet insert, and the garment is designed for easy care. The brand emphasizes community and sustainability, donating thousands of items to US charities since 2022 and removing plastic from packaging. The product is crafted in a family-owned factory in India, reflecting a blend of care and quality control.

What you gain is a reliable, comfortable bedding upgrade that offers lasting softness, a refined sheen, and uncomplicated care. When you make the bed in the morning, your room can feel calmer and more put-together, thanks to a cohesive look that coordinates with flat sheets and pillowcases in the same fabric (sold separately).

Size & Fit at a Glance

• Duvet cover: 120" W x 98" L (oversized king)
• Pillow shams: 21" x 37" each
• Fabric: 400 thread count cotton sateen with a soft sheen
• Closure: buttons with internal corner ties
• Certifications: OEKO-TEX STANDARD 100

Care & Style Tips

• Machine wash and dry at home for easy upkeep
• Experience a crisp, minimally wrinkled finish that pairs with multiple décor styles
• Coordinate with matching sheets and pillowcases (sold separately) for a cohesive look