Patent classifications
A
HUMAN NECESSITIES
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A47
FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
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A47C
CHAIRS; SOFAS; BEDS
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23/00
Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
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A47C23/12
using tensioned springs, e.g. flat type
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A47C23/18

Adjustable firmness mattress assemblies
12239230 · 2025-03-04 · ·

A mattress assembly generally includes a tension adjustable and stretchable fabric panel coupled to a rail system. Axial tension of the stretchable fabric panel can be adjusted to change a firmness property associated with the mattress assembly.