Quoting Jennybananna:" I paid $300 for my duvet and I LOVE it. As for sheets just go off what feels good to you. Go to like ... [snip!] ... you like. For a Cal King I can pay about $200 for a decent sheet set. My last sets were $250 I got them on clearance for $99."
Do you find your duvet is warm in the winter (Where I live, our temps get to -55 degrees celcius in the winter time, and our little comforter just isn't doing it anymore...lol) and how is it in the summer? Do you still use it? Or pack it away?