Originally Posted by Carolinahammockhanger
I need a new sleeping bag and I'm new to hammocking. I'm looking for a 40 degree bag for spring/summer/fall use in NC. I've been told while in a hammock down bags will compress more on the bottom and leave me cold while a synthetic bag will not, or at least not as much.
Both type of bags will compress under you and leave you cold. Synthetic is not perceptibly better than down in this regard. That's true on the ground or in a hammock which is one reason ultralighters prefer quilts, even when they sleep on the ground.
I have a thermarest prolite4 and ridgerest. Not sure which of those to use as well. Does anybody use a down sleeping bag w/o underquilt in moderate conditions? What are your experiences? Anybody who has used both a down and synthetic and could give me differences would be ideal. I like the idea of down because I do the ultralite thing, but I would rather be warm. If I should get a synthetic no problem, just wanna know. Thanks in advance. This form site is the best!
I always sleep without an underquilt because I use a pad. Works great. Some people like the feel of the underquilt better.
I think the ridgerest is the better pad for hammocking, at least for the weight. The prolight may have a higher R value but it has a weight penalty associated with the need to be airtight. But the purpose of the air is to make the pad comfortable, not warm. In a hammock you don't need a comfortable pad because there are no rocks or roots under your back.
IMHO you are better off with closed-cell foam pads in a hammock. You can use more than one when things are very cold.
However both pads are a little narrow for hammocking. You may need a SPE (segmented pad extender). Check them out on speerhammocks.com