Thank you very much for your response. I do have costco access.

Thank you very much for your response. I do have costco access, and thank you for your recommendation!

My question is Level 1(coldest) < level 2 < level 3 < level 4 (warmest), right? since I don't know which one is warmer. So for q year round, I should pick up level 2 or level 3 one?

Thank you!