padded

A padded cell is a cell in a psychiatric hospital with cushions lining the walls. The padding is an attempt to prevent a patient from hurting themselves by hitting their head (or other bodily parts) on the hard surface of the walls. In most cases, an individual's placement in a padded cell is involuntary.
Other names used are "rubber room", seclusion room, time out room, calming room, or personal safety room.

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