Mattress Sheet & Protective Mat & Pillowcase 3-Piece Set, Single Size This is a Nitori product. For details, please refer to Nitori's product information. → Please search for "Nitori Electric Single Bed 3-Piece Set". Although it's for electric beds, personally, I think only the pillowcase is specifically for electric beds, and the mattress cover and protective mat can be used even without an electric bed. → This is just my personal opinion. I purchased it for 9,990 yen a month ago, but I ended up not using it, so I'm selling it. It's brand new and unused. It's in the same condition as when I bought it, and I haven't even opened it (see image 1). I will ship it in the box as is. Thank you.