Dream bigger

More bed. Same mattress. Sognelle converts your Queen into a California King — without replacing the mattress you already love.

Patent pending
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↓ How it works
The idea

A bigger bed was hiding around your mattress

Sognelle is a U-shaped foam extender that wraps the foot and sides of your existing Queen mattress. Your mattress drops into the cradle, and the combined sleep surface becomes a full California King footprint — 72″ × 84″. No new mattress, no disposal logistics, no giving up the bed you're comfortable on.

Top-down diagram: Queen mattress inside the Sognelle U-extender forming a California King footprint
How it works

Three steps to a California King

01

Undress your Queen

Strip the sheets and bedding from your existing Queen mattress.

02

Place the Core / Plus

Set the Sognelle extender around your mattress on the existing frame or platform, open end at the head of the bed.

03

Dress it Cal-King

Standard California King sheets fit the new footprint. Done.

The full assembly, in thirteen seconds.
Why it matters
31%

of U.S. adults say they occasionally or consistently sleep in another room to accommodate a bed partner. Among millennials, it's 43%. Space is the cheapest sleep upgrade there is.

American Academy of Sleep Medicine survey, 2023 (n=2,005)
The line

Two ways to Sognelle

Sognelle Core
The extender

The high-density foam U, cut as a single piece. Structural, compressible, ships bed-in-a-box.

Sognelle Plus
The seamless one

The same U with an attached soft cover that wraps the whole assembly into one continuous, unified sleep surface.

Launching soon

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