Review on Ultrathick All-Weather Foam Sleeping Pad With Pillow For Backpacking, Traveling, And Hiking - Fast Air Self-Inflating Insulated Mattress - Durable Camping Mat In Green (3 Inches) by Eric Froedge

This mat is exactly as advertised. It's a little bigger than expected, even when rolled up, but with this much padding I'm not complaining. It's very soft and has saved me from many aches when backpacking. I only use it inside a tent since I don't want to risk putting a hole in it.That's why it's so frustrating that I can't figure out why it won't stay inflated for more that a few minutes once I get onto it. I've followed all the instructions and precautions, I always clear my site of rocks and sticks before setting up the tent and the mat always gets set up inside the tent. I'm mindful of everything around it while I'm hiking and while it's stored. That's why I am confused by it's refusal to hold pressure. It's a great product but like I said in the title, perhaps mine is defective.I do recommend this product though. Just be aware that when compressed and rolled up it will be approximately 10" in diameter.