I purchased a new set of four blackout and heat-insulating curtains from Nitori, linked below: https://www.nitori-net.jp/ec/product/2114100026285/ I mistakenly bought them, thinking they were a set of two, and now I have two extra 100x100 drape curtains and lace curtains, so I'm selling them. If you live alone and have small windows, this set of two should be sufficient. Don't make the same mistake I did, haha! Reference price: 4-piece set 4990 yen