I work on a pediatric psych unit. We have a padded room called the kid-zone. It is used for a "self time out" when the child is feeling agitated/ irritated or the staff may recommend use of the room to remove an aggressive child from the milieu for some 1:1 staff interaction. It is next to the nurses station and has constant video monitoring. We stress that the kid zone is a safe place and that going into the zone is not a punishment. It works well.