This may be a bit off topic but City College in Norwich has what is known as “The rug Room”. This is a room in the college that provide a low stimulation work area that the ASD / SEMH pupils are allowed to remove themselves to if they get anxious or over stimulated. They provide work stations, quiet booths and chairs/bean bags to de-stress in and staff to support the pupils in distress.
The pupils are expected to engage in learning there so they can take work from lessons / tutors to do.
My daughter has ASD and used the space a lot to calm down.
http://differentstudio.co.uk/city-college-norwich-rug-room/