There are so many variables. I think the sleeper's metabolism and the wind are the ones likely to vary the most. The two ways that I am most likely to
feel cold are: (1) CBS from compression of bottom insulation and/or from convection in an air space inside the hammock under my knees, and (2) cold legs or shoulders from air infiltration or compression of bottom insulation at the sides. I try to design to prevent both, and the better the overall shape of my bottom insulation, the warmer it will be for a given thickness because the thickness is more uniform. For some reason I am more likely to overheat from too much insulation in the top layer than the bottom (even though it's usually easier to vent the top), and that's what makes me prefer more insulation underneath. With all the attention given to socks lately, I think they are still underrated (even by me). They address potential airflow problems above and below - and on the sides if they are pulled out so they don't contact the hammock.
I'm impressed that you used lots of insulation for the top half of your body, but didn't wear pants. I conclude that your circulation is better than mine. Or maybe it was the baklava, though that sounds like a sticky fix.
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