Another Big Agnes fan here. I've been using the Colton Creek for years and love it. They don't make this exact model anymore, but have one very similar now. It's a 3-4 man, so perfect for one person, cot, all my gear, and sometimes my dog. It's tall enough that I can almost stand up in it. The cot fits perfectly, and two cots would also fit. It has enough mess for ventilation, and enough non-mess that I can still have privacy without the fly on. I LOVE the brow pole awning on the door. Easy to get in & out of the tent without having to unzip a rain fly door every time. I've never had a problem in the rain with it, and I don't get wet when I get in & out while it's raining. It weighs less than 10 pounds.
If I want to go light weight, and tress are on the menu, then I bring my hammock set up. The roll-a-cot is heaven to sleep on, but the hammock beats it for total comfort. hammock/tarp/under quilt/top quilt = about 5 pounds and very compact. For kayak touring where there aren't trees (Lake Powell) I just got a Sierra Designs Lightning tent plus an Exped Synmat pad.
"We are all visitors to this time, this place. We are just passing through. Our purpose here is to observe, to learn, to grow, to love....and then we return home."
Australian Aboriginal Proverb