COIL-IN-COIL SPRINGS AND SPRING CORES INCLUDING SAME
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Oct 2, 2024
filing date -
Oct 2, 2024
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status (Latency Note)
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Abstract
A spring core of a mattress includes a first support zone with a plurality of pocketed coil-in-coil springs and a second support zone including a plurality of pocketed coil-in-coil springs. Each of the plurality of pocketed coil-in-coil springs includes an inner coil, and an outer coil extending around the inner coil. The plurality of pocketed coil-in-coil springs of the first support zone have a first compression characteristic and the plurality of pocketed coil-in-coil springs of the second support zone have a second compression characteristic different than the first compression characteristic. In some embodiments, the uncompressed height of the inner coils differs between the first support zone and the second support zone. In some embodiments, the gauge of the wire forming at least a portion of the inner coils or the outer coils differs between the first support zone and the second support zone.
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