★This bed is "customer assembled furniture"★ For "customer-assembled furniture," we ask that customers unpack, assemble, and install the product themselves. Folding bed, semi-single, excellent breathability, shelf, outlet, thin standard bonnell coil mattress, vertical opening, semi-single, large depth A new common knowledge: breathable flooring that protects futons and mattresses from mold Lets air in but keeps dust out. That's "Prostor" ・Point 1: High breathability prevents mold This causes dust mites and mold to grow because there is no place for moisture to escape. It is not uncommon to find futons or mattresses covered in mold when you turn them over. The slatted structure allows moisture from the futon or mattress to escape, but the surface fabric effectively prevents dust from getting into the storage area, allowing you to keep your luggage and futon clean.