We desperately needed nice sheets for our new Serta iComfort split king bed. Good sheets for it have been extremely hard to find (bottom requires two twin XL sheets and top one king sheet). I tried looking just for Twin XL sheets, but most are made for college students so not high quality. I did try some twin XL fitted sheets from Bed Bath and Beyond and they fit terriblly and kept coming off the bed every time we raised the head or foot. We also are in Arizona, so I did not want a heavy sheet. I was very excited to find this set and in a color I liked. Price was reasonable, especially since we were are bit desperate. Another good thing is that they do have good elastic all the way around the fitted sheet, so the sheet stayed on well even when moving bed position (like raising head and feet). That is about all the good. The fit was snug the sheets say they will fit 15-18 but I highly doubt that the iComfort we have is only about 12-13 thick and the fitted sheets barely fit no extra room. The material is strange they are soft and thin (which is what we wanted), but everything sticks to them lint, animal hair and they stick to each other, so the top sheet kind or clings to the bottom sheets, which also makes it a little hard to make the bed. We have washed a couple times. The first time there was a ton of black lint from the sheet left in the washer, but not much the second time. So far they are holding up and work and are fairly comfortable, but I am still looking for a better set. I almost ordered two sets but decided to start with one. I am glad I did as I do not plan to order another set. I only recommend if you are on a tight budget after spending all your money on the fancy bed (hahaha) and need sheets asap because No stores sell them. They are not terrible, but not great either, hence the 3 stars.