Soft nightcap made by TAKEFU Retail price: 3080 yen I use this as a sleep aid and love it. Especially on days when I'm tired, I feel like the quality of my sleep is different when I wear it deeply, covering my eyes. Also, a nightcap is very warm on cold winter nights (although it's usually off in the morning, haha). My husband always wears it when he feels like he's catching a cold. He wears it on cold days even indoors. It's comfortable because it doesn't constrict (it loosens up as you wear it). Available in different colors. It seems that if it's more than 70% bamboo fiber, you can expect almost the same energy effect as 100%. Please try it, especially on days when you're exhausted or have tired eyes ✳️ - Brand: TAKEFU - Product Name: Nightcap - Size: FREE - Material: 70% rayon, 30% cotton Thank you for viewing.