Police are concerned for the safety of Andrew Bennett who has gone missing from Chesterfield Royal Hospital for the sixth time this year.
Mr Bennett (44) was reported missing from Calow yesterday afternoon (Wednesday December 30).
He is white, 5ft 6ins tall, of medium build, with short greying hair. He was last seen wearing dark trousers and a black coat and is described as a chain smoker.
He has been missing before and has been found in the Dronfield and Sheffield areas.
Officers are appealing to anyone who sees him to contact them on 101.