This was a first for me. I have been looking forward to a hammock night in the woods for a while. So, after school let out on Thursday I went with my son to a little spot about an hour north near Whiteside, Missouri. A little patch (50 acres) of woods with nothing else around. Weather was good, around 35 degrees F. when we got there. Just a light breeze. Slight chance of snow but, all in all, looking like a good night for a camp out.
I set up our hammocks with tarp coverage all the way to the ground behind and using a small "awning" in front. Fire was about 6 feet away from both sleepers. We did NOT use a reflective tarp just the natural collecting/convexing of heat inside our mostly open shelter. CCF foam pads underneath and a big 'ole sleeping bag completed our arrangements.
First thing, we were both VERY TOASTY warm. It dipped down to around 23-25 F with a slight breeze and we both felt great in terms of temperature. My son had a little bit of cold toes but not bad. Probably from when his feet got off from being above the pad. I slept in my underwear. Nice and warm.
But, because we were in bulky rectangular sleeping bags, neither of us were able to get to an asymmetrical lay. Also, our pillows were too big. Therefore, both of us complained we just couldn't get comfortable. I got a very achy back and neck. In the morning we rolled up our sleeping bags and set them aside as we got ready to break camp. Interestingly, after breakfast we both climbed into our bare hammocks for a little siesta and ---BEHOLD--- found the exact "Comfy" spot on the diagonal in our hammock.
Conclusion: We either need a different sleeping bag or an underquilt/topquilt configuration for that exact perfect sleep. Also, a smaller pillow. I loved being up off of the ground and I have got to try this again.