{"product_id":"california-design-den-king-duvet-cover-400tc-cotton-sateen","title":"California Design Den King Duvet Cover - 400TC Cotton Sateen","description":"\u003cp\u003eIn this review of the California Design Den king duvet cover, the bottom line is simple: this is a hotel-style, breathable cotton cover for anyone who prioritizes softness and cooling sleep. The winner of the Good Housekeeping Best Bedding Awards 2025, the 400 thread count 100% cotton sateen fabric provides a smooth, slightly lustrous finish that feels cool against the skin and holds up to regular home laundering. For shoppers who want a refined indigo dusty blue that reads modern and calm, this cover delivers quality construction and practical details without the bulk of a full comforter.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e400 thread count 100% cotton:\u003c\/strong\u003e Offers a soft, smooth sateen surface that feels cool and breathable for year-round comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKing size dimensions:\u003c\/strong\u003e At 106 in by 90 in the cover fits standard king inserts and leaves room for a generous lofted comforter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButton closure and internal ties:\u003c\/strong\u003e Button fastenings and four corner ties keep the duvet insert secure and aligned inside the cover.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndigo dusty blue color:\u003c\/strong\u003e A muted, grey-toned blue that reads calm and modern without purple or navy intensity for easy styling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable and easy care:\u003c\/strong\u003e The colorfast, densely woven sateen resists pilling and washes well, staying crisp after machine drying on regular settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAward recognition:\u003c\/strong\u003e Winner of the Good Housekeeping Best Bedding Awards 2025, reflecting independent acclaim for its quality and feel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis duvet cover is ideal for sleepers who want a true cotton sateen feel that balances softness and breathability, especially hot sleepers who need temperature regulation. It also suits anyone aiming for a streamlined, hotel-like bed aesthetic in a subdued indigo dusty blue that coordinates with neutral or cool palettes.\u003c\/p\u003e\n\u003cp\u003eShoppers who want a full bedding set with matching shams or a comforter included should look elsewhere, since this listing is duvet cover only. Those who require ultra-heavy-duty closures or snap systems instead of buttons may prefer alternatives if button durability is a primary concern.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSilky, cooling 100% cotton sateen that feels luxurious and washes well.\u003c\/li\u003e\n\u003cli\u003eGenerous king dimensions and internal ties help keep the insert in place.\u003c\/li\u003e\n\u003cli\u003eMuted indigo dusty blue color provides a calm, modern look without strong purple or navy tones.\u003c\/li\u003e\n\u003cli\u003eAwarded by Good Housekeeping, indicating trusted quality for bedding.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eButtons are easy to use but a few customers reported occasional issues with buttons loosening over time.\u003c\/li\u003e\n\u003cli\u003eCover only; a comforter or insert is not included, so additional purchase is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eCalifornia Design Den\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003e100% long staple cotton sateen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread count\u003c\/td\u003e\n\u003ctd\u003e400 (approximate, may vary by 5%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eKing 106 in x 90 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClosure\u003c\/td\u003e\n\u003ctd\u003eButton closure with 4 internal corner ties\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eIndigo dusty blue (soft grey undertones)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e1 king duvet cover (insert not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe California Design Den king duvet cover is a smart buy for anyone after a breathable, hotel-style cotton cover in a calming indigo dusty blue. With a silky 400 thread count sateen, secure internal ties, and easy home care, it offers solid value for bedroom upgrades, though buyers should remember the comforter is not included.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this listing include the comforter?\u003c\/strong\u003e\u003cbr\u003eThe product includes only the king duvet cover; the insert or comforter is sold separately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the indigo dusty blue look in person?\u003c\/strong\u003e\u003cbr\u003eThe hue has soft grey undertones and reads as a refined, muted blue rather than purple or deep navy, making it easy to coordinate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the cover easy to wash at home?\u003c\/strong\u003e\u003cbr\u003eYes, the colorfast cotton sateen is machine washable and dries on regular settings while remaining crisp and low on wrinkles.\u003c\/p\u003e","brand":"California Design Den","offers":[{"title":"Default Title","offer_id":48670133780699,"sku":"B089DDS3NW","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/716Pr0YAVaL._AC_SL1500.jpg?v=1778679554","url":"https:\/\/gearmusthave.com\/products\/california-design-den-king-duvet-cover-400tc-cotton-sateen","provider":"GearMustHave","version":"1.0","type":"link"}