I've just bought a 500gram fill quilt from UKhammocks and want to know what compression size it will fit into. It fits into a 10l stuff sack easily and I think I could get it in a 7-8 just as easy. However, if i could get it into a 5l would that be too much? Is it possible to compress it too much while it's in my pack? Should I let it have a little room to "breath"? Obviously when I have it at home it lays flat out of any sack so the loft can go back to normal.