My 2 1/2 year old will be starting a Tuesday/Thursday School program in the fall and will need a nap mat. I picked up the Kindermat today at Wal-Mart, and it just seems so "plasticky." Do you all have any suggestions for an on-line retailer who makes mats or mat covers. I googled it and looked on Etsy and got lots of hits, but I wondered if there were some tried and true sellers I should look at first. Thanks!