Reviewed by Nikki - 20th Sep, 2019This is better than expectedDescription on packaging says SIM it isn't. You have to blow it up with your mouth and this is a bit of a pain. But doesn't take too long. This is a lightweight mattress that comes in small package. Perfect for backpacking and wild camping. You can see the primaloft inside of the mattress. It is made out of ripstop material and is strong. On top of the mattress there are embossed logos to stop you from slipping I found the mattress warm and comfortable. Could tell it was insulated. Overpriced but I bought through eBay. So good deal. I wouldn't pay full price for it. For 44 it is good for me.