I have a Neoair and I use a Cumulus sleeping quilt which I bought from Slovakia. The quilts are made in Poland. I had a look at the Thermorest site because I use a Neoair mattress. Is the Chorus quilt attached to the mattress, or is it free standing like mine? Is the Chorus designed to have your mattress inside it, or is it like my quilt, where I have a foot box but I lay on the top? Sorry, but I could not get a clear picture of how the Chorus and mattress works. To blow my Neoair up, its not self inflating, it up I use the Thermorest yellow bag. Low tech yes and I can use it to keep stuff dry as well. Its very effective, it just takes four or five bag squeezes to inflate it to the level I like.