If I could, I’d rate as a 3.7.  Being a 400 thread count, they aren’t as soft and smooth as you’d find in the luxurious 700 thread count realm. But what I really like is the quality build that you can feel from the sheer weight of each piece. They are very substantial and the fitted sheet has very strong elastic bands (see pic). I haven’t had them long enough to test the “no pill” promise on the package, but I’m hopeful! One last thing, they arrived with a strong chemical odor that definitely had to be washed before you slept on them, and they stay pretty wrinkled (see pic), almost like a linen material. I’m not the kind to ever iron my sheets, so I’ll just have to get use to them looking wrinkly even when they are fresh out of the drier.