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US 7,748,066 B2Granted
Mattress center ridge compensator
AssigneeDreamwell, Ltd.
InventorRichard F. Gladney
Life of this patent
Estimating the term…
Abstract
A mattress includes reduced-firmness materials along a central region thereof in order to mitigate the occurrence of a central ridge following repeated use of the mattress as a sleeping surface. An associated box spring may also, or instead, present a central region with reduced firmness. An adjustable member may be employed to controllably compensate for the development of a central ridge.
Claims20
A mattress comprising:
- a head end;
- a foot end;
- a first side and a second side;
- and
- a center region traversing the mattress from the head end to the foot end, the center region including one or more materials other than a single air bladder that mitigate the emergence of a center ridge over repeated uses of the mattress, the center region having a width of between about two inches and about twelve inches.
2 more elements
A mattress comprising:
- a head end;
- a foot end;
- a first side and a second side;
- a center region traversing the mattress from the head end to the foot end, the center region including one or more materials other than a single air bladder having a firmness reduced or increased relative to other regions of the mattress, the center region having a width of between about two inches and about twelve inches.
1 more element
A mattress comprising:
- a head end;
- a foot end;
- a first side and a second side;
- a center region separated from the first side and the second side and traversing the mattress from the head end to the foot end, the center region having a width of between about two inches and about twelve inches;
- and
- a compensation means other than adjusting the inflation of a single air bladder for reducing or increasing a firmness of the center region relative to other regions of the mattress.
3 more elements
A mattress comprising:
- a head end;
- a foot end;
- a first side and a second and
- a center region traversing the mattress from the head end to the foot end, the center region including one or more adjustable members other than a single air bladder controllable to adjust the center region in response to an emerging center ridge, the center region having a width of between about two inches and about twelve inches.
1 more element
Dependencies are inferred from the claim text.