I've been lurking around the forums for a while, but this is my first post. I've learned a lot about sleeping bags and such here, yet still find myself wanting to get some thoughts on the setup I'm going with for a MEGA hike beginning in mid June. I want to avoid mail drops completely, so I'm averse to using two bags.

I've yet to purchase it, but I plan on going with the Big Agnes Zirkel SL (20 degree bag) with their insulated air core pad, and a silk liner plus a synthetic base layer for the cold. I'll be hammocking for much of the trip and will likely retreat to the shelters when it's too cold.

I sleep relatively warm, but I'm still a bit concerned that it won't be enough. I'd test it out but I'd need to get the bag for that. Has anyone used a similar setup successfully? Thanks!