(Creation of a fold air mattress that folds into a highly hygienic mattress "Curies Ag" format: Curier Age" silver ions, which continues to be beautiful and hygienic mattress created by combining the fabric using the "Uglisa" with excellent breathability and a "high density continuous spring". This is an authentic spring mattress but can be easily folded for easy storage and cleanup. The "High Density Continuous Spring® R-one" is composed of 1 continuous steel wire, so it is thin and comfortable to sleep on. The inside of the mattress is hollow to prevent moisture from accumulating inside and provide excellent breathability and durability. The moderate firmness provides support for easy tossing and turning. It supports the body across the entire surface, thus maintaining the ideal sleeping position. It can also be used as a futon with a firm feel. It is also recommended to use as a chest bed. Made in Japan for peace of mind.