ALEXANDRIA, Va., June 17 -- United States Patent no. 12,310,508, issued on May 27, was assigned to CUSTOM SLEEP TECHNOLOGY LLC (Milford, Conn.).

"Custom foam mattress design system" was invented by John William Vester III (Westport, Conn.) and Robert Henry Zukowski (Shelton, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A custom mattress having an upper layer and a lower layer. The upper layer has two or more segments arranged such that a first segment is positioned at a head of the mattress and a second segment is positioned adjacent the first segment at a first transition point. The lower layer has two or more segments arranged such that a third segment is positioned at the head of the mattress and ...