California Design Den Grey Split-King Sheet Set - 500 TC Pure Cotton

In this review of the California Design Den grey split-king sheet set, the bottom line is simple: these sheets are for sleepers who want a cool, soft feel and a reliable fit on adjustable split king beds. Crafted from 100% cotton sateen at 500 thread count, the set stands out for its buttery texture and moisture-wicking properties that help regulate temperature overnight. The practical design - two twin XL fitted sheets, a full king flat, and two king pillowcases - makes it an especially good choice for couples using a split king base.

Key Features

• 500 thread count sateen: delivers a smooth, slightly silky surface that softens further after washing for lasting comfort.
• Split-king configuration: includes two twin XL fitted sheets and a king flat so each side of an adjustable bed fits independently without bunching.
• Deep pocket fitted sheets: engineered to fit mattresses up to 15 in deep with strong elastic and bed-making indicators for a snug fit.
• Breathable cotton: made from extra long staple cotton to wick moisture naturally and help sleepers who run warm stay cooler.
• Quality assurance: Oeko-Tex certified and machine washable, these sheets are designed not to pill, fade, or shrink over repeated washes.

Who It's For

The best users are couples with an adjustable split king bed who want separate fitted sheets for each side and prefer a cool, soft feel from natural fibers. People who value a neat, deep-pocket fit and the tactile appeal of a sateen weave will appreciate how these grey sheets drape and hold their look.

Those who should look elsewhere include buyers who need top/half split king flats (this set is for full split configuration only) and shoppers seeking a crisp percale finish rather than the buttery smoothness of sateen.

Pros & Cons

Pros

• Very soft and smooth handfeel that improves after washing, offering clear comfort benefits.
• Designed for split king adjustable beds with two fitted sheets that stay snug and are easy to make.
• Breathable 100% cotton construction helps with moisture wicking and cooler sleep for warm sleepers.
• Oeko-Tex certification and durable construction mean reliable performance through repeated washing.

Cons

• Sateen weave gives a buttery sheen rather than the matte crispness some sleepers prefer.
• Not suitable for top/half split king setups, only full split king configurations.

Specifications

Our Verdict

These grey split-king sheets are a strong choice for anyone with an adjustable split king bed who wants a cool, soft cotton sateen set that fits securely and washes well. The construction, breathability, and Oeko-Tex certification make them a good value for sleepers seeking comfort and durability without sacrificing a luxurious feel.

Frequently Asked Questions

Will these sheets fit my adjustable split king mattress?
Yes, the set includes two twin XL fitted sheets designed for full split king adjustable beds and fits mattresses up to 15 in deep.

Are these sheets good for hot sleepers?
Made from extra long staple cotton with natural moisture wicking, the sateen weave is breathable and suitable for people who sleep warm.

How do they hold up in the wash?
The sheets are machine washable, Oeko-Tex certified, and designed not to pill, fade, or shrink with repeated washing.