I recently bought a Rumple, haven't actually used it yet, but I think some of what I learned might help:
There are three levels of quality
- Synthetic - called The Original (around $100 at REI)
- Really Nice Synthetic called Nanoloft (around $130 at REI)
- authentic Down (Around $180 at REI) - I can't remember what its called because $180
Each higher grade is more compact and lighter than the grade below it. Noticeably lighter and more compact.
The stuff sack for the Original (synthetic) is just barely big enough to stuff it back in without cursing too much.
Quality of blanket material, seams, stitching, and tie down loops seems really good. Stuff Sack feels like it will burst or tear at the seams when stuffing it in. Be careful with it.
The single person is generously sized, at 80'x50"
The Original version, and I think the Nanoloft version, are made from recycled plastic bottles. Kinda cool.