layer IX uq and down uq

[bike camper]

Has anyone ever layered an IX underquilt between the hammock and a down underquilt? Any condensation problems? Any other observations or thoughts?

[Knotty]

It has been done and that's probably the most sensible order. I tried IX under the UQ and ended up with lots of condensation. While not a complete vapor barrier, in my experience it doesn't breath very much so it should be used close you your body to minimize the chance of condensation.

[charley]

I have done it also. I have done it top and bottom. You have to be careful with condensation. The IX should be closest to the body.

[canoebie]

This is my go to configuration for really cold weather. I have a DIY IX UQ with 2 layers of IX. I have it next to my hammock and then put a 3 season Phoenix under that. I have gotten down in the teens with this. It works well. I have never had any condensation issues with IX as a UQ. Top quilt is a whole different story. I use my IX top quilt (2 layers) in the summer, though sometimes it feels clammy. I like the lightness and weatherproofness of it.

In the winter I use my IX TQ as a sock over the hammock. Raises temps inside considerably. I then use a down sleeping bag as a TQ.

[KefWalker]

I always use my Shamu IX UQ--even in the summer--right up underneath my WBBB. When it gets cold enough for me to add my Phoenix UQ, like now, I place the Phoenix on the outside. So far, I haven't had any condensation issues. Went out for a couple of days this weekend with the Shamu and Phoenix setup, and with temps at night down to 19-21*F, no condensation.

[Doody]

I am going to try this as well! I have my DIY sewn poncho liner uq with 3 layers of IX. With my winter incubator over that I should be able to handle some pretty low temps.