A Detroit-based health system has unveiled a new hospital gown that aims to put the wraps on a big source of patients' grumbles — a lack of rear coverage. Resembling a wrap-around robe, the ''Model G'' gown closes the once-drafty back, using adjustable snaps on the front and along the shoulders. As well as catering to patients who appreciate a more modest look, the gown — with color-coded trim — is made from a cotton-poplin blend for improved comfort. The gown was developed by the Henry Ford Innovation Institute at Henry Ford Hospital in Detroit. A version was introduced in 2013 on a few inpatient floors, and the institute has since updated the design based on feedback from patients and staff.