Used for about a year. The condition is as shown in the images. 〇 Sleep fast, sleep deep, awaken your brain. Awaken tomorrow's performance. ▼ Three features of the Brain Sleep Pillow 1. Cools the brain for fast, deep sleep 2. Patented technology creates a pillow just for you. 3-layer, 9-gradation structure for a personalized fit. 3. Washable with water for cleanliness For those who understand that this is a used item, thank you. SLEEP