I use the rainbow sleep mats from http://www.wintergreen.ca/ the prices are better than Scholar's Choice, and allaboutkids. The shipping was reasonable too. The only thing is they are more of a warehouse so you have to wait after you place your order for them to receive them from the suppliers. They say shipping takes 4-6 weeks. I think it took 3 weeks for my last order which arrived just after Christmas last year.