Fitted or flat? That’s the weighty question facing the California Legislature, which is considering a bill that would regulate what type of sheets can be used on hotel bed mattresses across the state. Supporters of the bill argue it will reduce worker injuries by eliminating the need for workers to repetitively lift extremely heavy mattresses when making beds. They contend that flat sheets cause workers to strain their backs, shoulders and wrists, and are often responsible for repetitive motion injuries. State Bill 432, sponsored by Sen. Kevin de Leon (D-Los Angeles), also calls for the use of long-handled tools like...