California Design Den 400TC Cotton Sateen King Duvet Cover Set, White — 3-Piece, OEKO-TEX Cert.

A crisp, breathable 400 thread count 100% cotton sateen king duvet cover set in white that protects your comforter, looks refined, and makes bed care simple.

This three-piece king duvet cover set from California Design Den combines a smooth, subtle sheen with practical details designed for everyday use. Made from 400 thread count cotton sateen, the set includes one duvet cover and two matching king pillow shams, offering an elegant neutral base that layers easily with any bedroom decor. OEKO-TEX STANDARD 100 certification and the Good Housekeeping endorsement highlight the set’s focus on safe materials and quality construction.

How will the duvet cover protect and extend the life of my comforter?

The duvet cover creates a removable barrier between your comforter and spills, body oils, and dust, so you wash the cover more often instead of the whole insert. Internal corner ties secure the insert in place to prevent bunching during use, and the button closure keeps everything neatly enclosed.

• Protects comforter from stains and everyday wear
• Internal ties keep the insert aligned and flat
• Button closure for a tidy, secure finish
• Machine washable and dryer friendly for easy care

Will this king duvet cover fit my comforter and pillows?

Sizes for duvet inserts vary, so measuring your comforter before purchase is recommended. The California Design Den king duvet cover measures 106" wide by 90" long and the two pillow shams measure 21" x 37", fitting standard king pillows. Because sizing differences exist across brands, these exact dimensions help you verify fit before ordering.

• Duvet cover dimensions: 106" x 90" (king)
• Pillow sham dimensions: 21" x 37" (two included)
• Designed to fit most king comforters when measured first
• Coordinate with matching sheet sets sold separately

How do I care for this cotton sateen duvet cover set?

The cotton sateen fabric is durable yet soft and is made for straightforward home laundering. You can machine wash and tumble dry the cover and shams, which makes maintaining fresh bedding simple without cleaning the comforter itself. Minimal ironing is needed thanks to the fabric’s natural sheen and reduced wrinkling.

• Machine washable and dryer safe
• Button openings for easy removal and reattachment
• Non-elastic internal ties for dependable insert security
• Fabric resists heavy wrinkling and keeps a polished look

What quality and sustainability standards does this set meet?

This set is crafted with attention to safety and environmental considerations. It carries the OEKO-TEX STANDARD 100 label, indicating it has passed tests for harmful substances, and earned the Good Housekeeping Seal and Best Bedding recognition. The brand also emphasizes responsible packaging and community support.

• OEKO-TEX STANDARD 100 certified materials
• Good Housekeeping Seal and Best Bedding award recognition
• Family-owned manufacturing with quality checks
• Reduced plastic in packaging and charitable donations program

Who this is for: Ideal for sleepers who want a refined white base that’s both comfortable and low-maintenance—couples, families, or anyone who prefers laundering covers instead of bulky comforters. Choose this set if you value a smooth, slightly lustrous cotton finish, reliable fit information, and bedding from a brand with sustainability and community initiatives.