So I think there's probably a solid dozen threads on here about sheets and bedding already. A lot of talk about what's best, and if brands like Frette and Sferra and others are worth the extra money. I just bought a set of Wamsutta 778TC Supima Cotton sheets today at Bed Bath and Beyond, and after washing them it feels pretty much like cardboard. Not terribly impressed so far. While I realize sheets will probably get softer with time, these really feel like stiff canvas. They will go back to the store tomorrow. After reading pretty much every bedding related thread on SF and not coming to any real conclusions yet (other than, when I have a spare grand to plunk down, I might experiment with some of those linen sheets), but seeing probably the most positive comments collectively for Sferra, I figured I'd give them a try. I really just want some plain white sheets that feel really great. So my question is: how do you tell what the difference is among the various Sferra sheets? Even Sferra themselves admit that thread count is really a bad gauge of a sheet's quality, feel, luxuriousness, etc. So are the Sferra Linea Casa sheets any different than the Sferra Celeste? Or the "Luxury Hotel Collection" Sferra sheets?