Want a chance to see your mattress breathing with same honesty and procedure as you do. Then have at the gallery below for an Airbed installed in a claustrophobic show flat in London, which not only breathes in from one fresh air source, but also throws out the older one through plastic windpipe, mimicking a sleeping body.

Compressed air causes clear polythene to sink and rise like you do with each breath. The discrete threat due to its ultra violet hygienic nature pulls it away from market. Anyway, it would have been a good haunting surprise for the family.
Via: Architectradure