This is a True Sleeper Seventh Pillow Ultra Fit single size. Kenmin Pillow (Sleep Health Pillow) I purchased this one year ago. I used it occasionally for about two months, but it didn't suit me, so I'm selling it. I haven't used the Kenmin Pillow much either. Since the frequency of use was low, there are no noticeable stains, but there is some discoloration due to aging. Please understand this and consider purchasing.