The world’s first lie-flat “pods” are coming to an economy class airplane section near you.

Air New Zealand has had its SkyNest concept in development for the past five years and announced on June 28 it’s ready for prime time—in 2024. The seats are fully flat, made up with real mattresses plus cooling pillows and bedding, and located in the back of the plane, right behind the premium economy cabin. But like everything to do with flying today, there’s loads of fine print on this announcement.