I use the cimarron and a bug bivy. The reason I use a bug bivy is this provides protection for my sleeping pad, keeps the creepy crawlies out, super lightweight and keeps my sleeping stuff together.
Also you can sleep anywhere with a bivy as no additional stakes or setup is needed, and if you are lazy like me, I often just use my bug bivy without the tent (weather permitting).
Borah gear makes a great lightweight bug bivy.
https://borahgear.com/bugbivy.html
My sleep setup is on the right
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