It turns out they do have other colors and I plan to order another set.
We recently went from a king bed to a split king with adjustable frames. As I already have the top flat sheet and pillowcases, I only needed the fitted xl twins. I was impressed that they had elastic on the corners to help keep the fitted sheets in place. Pockets are plenty deep enough for our 12" mattress and I wouldn't want them any deeper as the fit wouldn't be as good. I would like more color options besides white.
The sheets are very nice and fit great! Just wish there were more color options.
Sheets fit memory foam bed well, color was good. I needed them, but though they were a bit pricey for the quality.