Never imagined the circulation in spite of some reviews that have not taken a decision so positive about bought and am so far (after 2 weeks) love it! - Delivery after 2 days - No problems my size, my pad fits 1a! No turning or so needed! - Easy to wash, laundry has survived - Very soft, comfortable to sleep on it - No problems when drawing, I alleien hammer out just fine - Sits well after 2 weeks still good without great slipping - Whether there much sweat it, I can not judge so, zZt's winter ... seems to me not in front as if that is very impermeable and you will be fine very sweat in the summer plan