A member on www.expeditionportal.com suggested I come over here for help. I'm super stoked about a hammock forum but I just wish I had more time to look around and find a solution.
Here's the situation:
In 2 weeks I will be competing in the Colorado Trail Race. My sleeping system consists of a HH Ultralight Asym. My bag is 45* down. In a perfect world I would have made sure this setup was going to work sooner but life got in the way (I had one of those pesky weddings) and limited my chance for over nighters. I'm normally a very warm sleeper but the last few times I've used this setup I have frozen. Temps during the nights were probably low 50's to high 40's. Each night I was wearing rain pants, wool socks, fleece hat, and a Craft LS base layer.
I've spent a ton already on gear for this race so I'm trying to be thrifty here. I also need to keep weight and girth down since this is an entirely self-supported race. Tonight I am going to try using a reflective auto sunshade under my sleeping bag and inside the hammock. I also read to try and use the bag as more of a quilt than a traditional bag while sleeping on the shade. I'm really hoping this will work b/c it's light and rolls up nicely so I can fasten it to the hbar. I also picked up a space blanket but the condensation worries me.
Sorry my lack of planning has brought me here to ask for help instead of thoroughly searching the archives. I'll definitely do that when I get back.