I haven’t jumped on the wool sock thing yet that everyone goes on about, but I tried wool blankets on the bed last year and it was amazing. For much less thickness than a synthetic filled comforter, I felt as warm or warmer, but it never got that trapped heat muggy feeling when you get too hot. The too hot just didn’t happen anymore. The thermoregulation was just perfect for me.
Makes sense now why sheep are covered with wool and not polyfill 😁
PS, I’m talking simple $20 milsurp type blankets, not these fancy $100 to $1000 things I see promoted now and then.