I had been using Hypnia mattress for about the month now...it took a bit of time for body adjusting to it,it feels comfortable,but don't think it's air vented,as I do get warm sleeping on it,unlike the other brand mattress I wanted to buy, and regret someone I went for Hypnia mattress instead of the brand mattress. Overall Hypnia is comfortable mattress but not for hot sleepers like me ðŸ¤