Quiet room
room built with regard to silence by shielding noise from or towards the surroundings
A room that is quiet. A silent room. An enclosed space with no sounds. This may be used for people that feel overstimulated, anxious, stressed, etc. It could be an effective way for a person to relax and feel better.
A quiet room may be most effective if it contains things that are of comfort or liking to the user. They can spend some time in the room doing things that are calming.