Patent ID: 11910929
Assignee: SEALY TECHNOLOGY LLC
Field: Furniture, games (Other fields)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method for adjusting the firmness and/or profile of a mattress assembly, comprising the steps of:
providing a mattress assembly comprising an external sleep surface and an internal two-dimensional array of vertically oriented bladders, a first inner vertically oriented spring within each of the vertically oriented bladders, a second outer vertically oriented spring provided within each of the vertically oriented bladders separate of the first inner vertically oriented spring, said second outer vertically oriented spring having a shorter height than said first inner vertically oriented spring, and said second outer vertically oriented spring varying in diameter from larger diameters at upper and lower ends to a smaller diameter between the upper and lower ends, wherein the second outer vertically oriented spring is a compression spring and the first inner vertically oriented spring is a tension spring;
detecting a pressure level in each of said vertically oriented bladders, said pressure level created by at least one pump in fluid communication with the internal two-dimensional array of vertically oriented bladders, wherein at least one valve is associated with each of said vertically oriented bladders to control flow of air and/or fluid between said at least one pump and each of said vertically oriented bladders;
monitoring said pressure level in each of the vertically oriented bladders to detect a pressure change in at least one bladder of the internal two-dimensional array; and
adjusting the pressure level in the at least one bladder of the internal two-dimensional array in response to a pressure change in the at least one bladder of the internal two-dimensional array to provide a desired firmness and/or profile.