From Inside Edition.

One mattress is believed to be the most expensive mattress in the world, pricing in at a million dollars. It is made by the Swedish brand Hastens, and the New York showroom is so exclusive they sent Inside Edition a car to get driven there. The mattress is made of horsetail hair, cotton, wool and features individually pocketed springs. The mattress made a cameo in the hit Netflix show "Emily In Paris." Inside Edition’s Ann Mercogliano gave the mattress a try.