by Gadgetgeek » Mon 21 Jan, 2019 4:43 pm
I've got a Mountain Hardware spark, EN comfort rated to 5 degrees and is 830g. Its a long way from where synthetics used to be. I've also made some climashield apex quilts (poorly) that are reasonably warm for the size and weight. None of it is magic, and none of it is as warm for the weight as we'd like, but it is an option.
I'd be considering if down or synth is the best option for your conditions. I've found that where I am in SEQ that down really looses a lot in the consistent humidity. I've got a katmandu down (yeah, I know, but it was a panic buy) that is EN rated to 15, and I got cold on a 22 degree night in it. So for me synth has that added benefit. When you add that to the potential allergy concerns, that may swing the balance.
Of course its hard to try a bit of kit without risking the costs, but there are ways.
Also, its possible that some claritine just sorts the problems the days you are using it.
Good luck with your hunting!