I just got back from WalMart - got some really dark green 60" wide uncoated taffeta - very tight weave. This will be the dark side of the quilt. I think I have some DWR gray ripstop (the stuff I was going to send HE for his tarp until I tested it ). I'll use that for the light side.
Now all I have to do is figure out how to keep the male dino quilt on the male dino - he won't use a foot box. Any suggestions? He's using a Thermarest ProLite 4 - on the ground .