I have both the duo and standard size Exped Megamat max versions. By far the best portable mattress on the market. I actually sleep better on them than my bed at home. Super comfortable. Great insulation factor on the cold ground. I’m 6’4” and love the duo. Keep it in my Tepui Ruggedized Autana RTT deflated along with my sleeping bag and I’m always ready to go. I always look forward to my best nights sleep when on my Exped. Expensive but worth every penny. I’ve used them as guest mattresses at home and everyone raves about their amazing comfort. I wouldn’t recommend them for backpacking or long hikes as they are heavy, but they weren’t made for that purpose. For overlanding, don’t hesitate, just get one...you’ll love it and wonder how you’ve been doing it without!