High end Serta Twin size bed $450

High-end Twin bed set, was used for less than a year. The mattress is Serta! It is the Cressbrook Firm Euro Top (10").The spring box is original Serta and is 9" . We include a firm metal frame, 4 wheel legs for easy and comfort handling and 2 extra legs for extra strength. House with no smoke no pets. New is 470$ only the mattress! We ask 450$ for the whole bed set!