and that ... paper like backing,,, isn't paper, its the same stuff as interfacing used for quilt smart lone stars...it is just a sew in/leave in interfacing just adds stability, washes just fine...
lots of different materials can be used...in the 'old days' quilts were made with what ever could be recycled. it seems like it's only been the past 15 years or so when (some quilters) decided every little piece should be purchased new...the members of the disposable society...they throw their scraps out, purchase new fabric for each project and walk around with their noses so far in the air it's a wonder they don't drown in the rain...
to me...and this is just my opinion...the quilts these type of quilters make look just like the ones you buy from penney's or pottery barn...manufactured, and just like a dozen others...it is re-using/recycling/ improvising and using what we have that makes our quilts ours, special, individual and not just like the ones from walmart. i have used mattress pads, flannel sheets, scraps of batting with results which are just fine...there are those people who would simply shudder at the thought...but when they see the quilt, they have no idea unless you tell on yourself.