California Design Den Split King Sheets Sets for Adjustable Bed

In this review the California Design Den split king sheets stand out as a heavy, hotel-style option for sleepers who want a substantial, long-lasting cotton set for an adjustable bed. The single biggest reason to consider them is the dense 1000 thread count sateen weave that feels notably thick and smooth from the first use yet softens further after washing. For anyone who prefers a weightier, cool-feeling cotton sheet rather than a thin or crisp variety, these sheets deliver a clear, familiar luxury without unnecessary gimmicks.

Key Features

• 1000 thread count sateen: Provides a dense, smooth surface that replicates the feel of high-end hotel bedding and becomes softer with each wash.
• 100% cotton construction: Made from extra-long staple cotton grown in India for natural breathability and durability over time.
• Split king set for adjustable beds: Includes two twin XL fitted sheets and a single king top sheet to allow independent head and foot adjustments without tucking conflicts.
• Deep pockets and all-around elastic: Fitted sheets fit mattresses 8 to 15 in deep and stay securely in place thanks to the continuous elastic edge.
• OEKO-TEX STANDARD 100 certified: Independently tested for harmful substances to offer added peace of mind about fabric safety.
• Easy care: Machine-wash warm and tumble-dry low with minimal wrinkling when removed promptly, and the fabric resists pilling and fading.

Who It's For

This set is ideal for sleepers who prioritize the tactile feel of luxury cotton: people who like a heavier, more substantial sheet that still breathes and performs year-round. Owners of adjustable beds who need a full split fitted solution will appreciate the two twin XL bottoms and clearly labeled headside/footside for easier bed-making.

Shoppers who prefer ultra-lightweight, crisp percale or who need fitted sheets for mattresses thinner than 8 in should look elsewhere; likewise those wanting synthetic blends or wrinkle-prone delicate fabrics may find these too weighty for their taste.

Pros & Cons

Pros

• Luxurious, thick 1000 thread count sateen that softens with washing.
• Complete split king configuration tailored for adjustable beds.
• Deep pockets and all-around elastic for a secure, snug fit on 8 to 15 in mattresses.
• OEKO-TEX certified cotton for added safety and easy machine care.

Cons

• Heavier, thicker feel may be too warm or dense for those who prefer lightweight sheets.
• Some customers report mixed durability for fitted sheets over long-term heavy use.

Specifications

Set contents	1 king top sheet, 2 twin XL fitted sheets, 2 king pillowcases
Top sheet size	112 in W x 102 in L
Fitted sheet size	39 in W x 80 in L (two pieces)
Pillowcase size	21 in W x 41 in L (two pieces)
Material	100% extra-long staple cotton, sateen weave
Thread count	1000 thread count (approx)
Care	Machine-wash warm, tumble-dry low; remove promptly for smooth finish

Our Verdict

These split king sheets are a strong choice for buyers seeking a heavy, hotel-like 100% cotton sheet set for an adjustable bed. The dense 1000 thread count sateen offers a lasting, softening feel and practical features like deep pockets and OEKO-TEX safety testing, making the set good value for anyone prioritizing comfort and secure fit over ultra-lightweight bedding.

Frequently Asked Questions

Will these fitted sheets work on an adjustable split king?
Yes. The set includes two twin XL fitted sheets designed for split king adjustable beds with labels for headside and footside to simplify bed-making.

Are these sheets likely to shrink or pill?
They are made from extra-long staple cotton and are designed to resist pilling and shrinking; follow the care instructions for best long-term results.

Do these sheets sleep hot?
The sateen weave and substantial weight give a richer feel, but cotton breathability helps them stay reasonably cool; extremely warm sleepers might prefer a lighter weave.