The Purity Home 400TC Percale MiG Cotton Sheet Set is top quality. The sheets are so comfy and fit on my daughter’s bunk bed with no problem at all. I’m very satisfied with how soft and beautiful they are. It’s obvious by looking at them and feeling them that these sheets are so nice. These sheets are open weave construction to allow air flow. I noticed that after I washed them a couple times that they do get softer.