This
Mirador flat sheet from Brit-born label
The White Company is the kind of linen that'll make you actually get that early night for once. Why? Well, its got a 400-thread-count Egyptian cotton thread-count for starters (very, very soft in non-bedding-speak), and there's a linen border which, surprise surprise, goes very well with the rest of the set - we'll take the pillowcases, duvet cover...oh and throw in a fitted sheet, while you're at it.
The White Company flat sheet
100% cotton, border: 100% linen
400-thread-count
Length 260cm, width 280cm