California Design Den 600 Thread Count California King Sheet Set, White — 100% Long-Staple Cotton Sateen, Deep-Pocket Fit

These are 600 thread count California King sateen sheets made from 100% long-staple cotton, designed to deliver smooth, breathable comfort and a refined luminous finish.

California Design Den's 4-piece California King sheet set in white pairs a 600 verified thread count with a sateen weave to create a soft, polished surface that becomes more comfortable with each wash. Independently tested and awarded recognitions like the Oprah Daily Sleep Award 2026 and the Good Housekeeping Seal, the set focuses on durability, safety, and an elevated hotel-style look at home.

How do these sheets feel night after night?

The sateen weave produces a silky-smooth hand with a subtle sheen that reads luxurious without being heavy. Because the fabric is single-ply 100% long-staple cotton, it balances plushness and breathability and tends to soften further after repeated laundering.

• 600 thread count verified by independent labs for accuracy.
• Single-ply long-staple cotton for durability and softness.
• Sateen weave delivers a polished, silky surface and lightweight drape.
• Becomes progressively softer with regular washing.

Will the fitted sheet actually fit my mattress?

The set includes a deep-pocket fitted sheet designed to stretch comfortably over standard and taller mattresses. An all-around elastic grip helps keep the sheet in place, and the dimensions are tailored for California King beds.

• Fitted sheet measures 72" W x 84" L with deep pockets fitting mattresses 8"–16" thick.
• All-around elastic provides a secure, snug hold through the night.
• Top/bottom tags simplify correct placement when making the bed.

Are these sheets easy to care for and safe to use?

Yes—these cotton sateen sheets are designed for household laundering and long-term use. They carry OEKO-TEX STANDARD 100 certification and have been evaluated for pilling, fading, and shrinkage to help preserve look and performance.

• Machine wash warm, tumble dry low; remove promptly to reduce wrinkles.
• OEKO-TEX STANDARD 100 label confirms independent safety testing for harmful substances.
• Fabric treatment and construction tested for pilling, fading, and shrinkage resistance.

What does this set include and what are the exact sizes?

The 4-piece California King set contains everything needed for a tidy bed setup with a classic open-end pillow design. Sizes are specified to ensure a proper fit for California King mattresses and pillows.

• 1 flat sheet: 108" W x 106" L.
• 1 fitted sheet: 72" W x 84" L, fits 8"–16" mattress depths.
• 2 king-size pillowcases: 21" W x 40" L, open-end style.

California Design Den emphasizes transparency and responsible production. The sheets are crafted in a family-run factory in India, with thread count claims independently verified (±5% variance). Since 2017 the brand has focused on quality and social responsibility, donating more than 56,000 bedding items across the U.S. and earning accolades for comfort and performance.

Who is this for? If you want a hotel-inspired white sheet set that combines a smooth, sateen finish with verified 600 thread count and easy-care durability, this California King set is aimed at sleepers who value a polished bed aesthetic, breathable long-staple cotton, and independent product verification. It suits people with deep mattresses, those who prefer a silky but lightweight feel, and shoppers seeking certified safety and long-term wear.