>>941097I bought an REI Kilo Plus in 2007. I don't know if it's been discontinued, but the bag was supposedly rated for 0*F. The first (and last) time I took it out, temps dropped to maybe 40. I didn't have a thermometer, but this was non-freezing spring weather and flowers were blooming on the ground. Because the down fill in the bag was such low quality and there wasn't enough of it in the bag, the feathers would shift around inside the baffles, creating literal cold spots where there was no insulation, just the two layers of nylon shell material pressing up against each other. I was able to manage by constantly fluffing it, making an effort to not shift my body around AT ALL and laying my jacket over my body inside the bag, but it was a very uncomfortable way to spend the night and definitely not how a good sleeping bag ought to be performing.
Not that the Kilo Plus is the same as the Igneo. I don't know anything about the Igneo, but this one experience I had with an REI sleeping bag was so bad that I swore the brand off completely for all outdoor gear.
The old adage is true. You absolutely do get what you pay for. I'd add one more line to that: There are no cheap sleeping bags, only cheap men.