With respect to the high thread count thing - I recently went and bought some (previous sheets basically worn out) and I wouldn't say that it improves my sleep.

With respect to the high thread count thing - I recently went and bought some (previous sheets basically worn out) and I wouldn't say that it improves my sleep. What it does do though, is it feels like a luxury good. It is this mental thing/process of giving yourself a treat, or treating yourself like 'royalty' that gives you a little boost. And it didn't cost all that much either. Similarly, with the last pairs of jeans that I bought, I paid to have the length adjusted. Previously I'd just rolled up the cuffs(?) and they get a bit daggy. Despite the adjustment costing almost as much as the jeans did, my guilty secret is that I get a ridiculous amount of pleasure from looking down and seeing perfect length jeans. Treat yourself, you're worth it, and nobody else will do it for you...