After my first backpacking hunt/adventure to the high country of Colorado this year I want to switch some things up with my sleeping/shelter set-up. I found that I had a really hard time getting comfortable with current sleep set-up. I understand a backcountry hunt isn't going to be like a stay at the Marriott, but I seemed to find myself awake more at night than I did asleep (or so it felt). My old set-up had me with a Big Agnes Fly Creek UL2 for shelter, a Western Mountaineering Highlite as my sleeping bag, sleeping on an Exped Synmat UL7. I found the Highlite too constrictive and I prefer to sleep on my stomach and side. This year, I've made some changes. I've purchased a Megatarp for starters. For my sleep system, I was planning on keeping the Exped Synmat UL7 but swapping the Highlite out for a quilt. Given I'm going floorless I'm looking at a bivy to protect my pad (and to keep any bugs at bay)...and that's really all I want it for. Anyone have any recommendations for a roomy bivy? I was looking at a mesh bivy from Marmot or the bug bivy from OR. They look like they'll give me a bit of room in the bivy and allow me to move around with ease (swap from side to side pretty easy). Any other lightweight bivies you guys recommend that will allow me room to move around and is lightweight? I looked at the Integral Design bivies and the TiGoat bivies but they seem like they maybe to constrictive for me. I think I'm wanting something I can stake down as well. Any additional ideas or help would be appreciated! This set-up would be used for early season high-country mule deer hunting mainly.