Locking back with nostalgia and longing to the days when I could and would get a good night sleep pretty much anywhere. On top of rolled out sleeping bag on a pavement in Iran, or on the bare ground in some desert, on railway station platforms, or forest floors – we never had anything to sleep on (did sleep mats even exist back then …?). But these days, I'm much more sensitive and for my big trips, weight is a major issue as it limits how much food I can take. And as said earlier here, TAR mats are the worst IMO. I’ve been experimenting a bit recently in the ongoing search for comfortable sleep pads. Not much concerned with overnighters or short trips, but mainly with hikes that take a couple of weeks. With the current lockdown, our roof terrace made for test nights under stars – who would have thought... I noticed that comfort breaks down into different parts: my Exped AirMat HL M Regular (uninsulated, 310gr) is the most comfortable UL mat I own to lie on - but wakes me up and disrupts sleep when turning (which I do a lot) more than my other pads. The alternatives are my to-go-to pad for some years now - the STS (yellow) uninsulated UL Sleeping Mat (shortened to 110cm @268gr) and secondly, on @Arne L. 's recommendation, my new Exped FlexMat Plus (shortened to 107cm @235gr). I combine the Exped FlexMat Plus with a 145cm x 48cm piece of cheap Hong Kong double sided alu foil folding mat (53gr including a 34cm pocket at the foot end which can be filled with extra clothing, a sit mat etc for cushioning) to fit my size (5'10''). Pocket at the foot end which can be filled with extra clothing or a sit mat etc for cushioning To my surprise, I cannot tell which of the two is more comfortable to lie on. But the Exped FlexMat Plus seems the least sleep disruption when I turn. Which is great in some ways - similar comfort but no inflating-deflating hazzle, no puncture worries, almost same weight (the STS needs a 35gr silvered foam peace for insulation underneath) and instant access to stretch out on breaks during the day - but more bulk to carry of course. And then I thought how the overlap torso section lends itself to “layering” – why not add extra clothing or a down jacket in-between the two? A test night proved that everything stayed in place overnight – bingo…! Obviously, there won’t always be extra clothing for every night but a bit of extra comfort for some nights is nonetheless welcome on a thru-hike. Temperature wise, the Exped FlexMat Plus / alu foil folding mat combi (with a small CF sitmat in the foot end pocket as pictured) proved comfortably warm at present sub zero temps (under a 20 degree zpacks quilt zipped up to the hips as I always do in colder temps). No notable difference between nights on Exped AirMat HL or my STS (both with a alu foil foam mat underneath and a torso piece of 3mm CF on top).