The sleeping bag you sent us is doing its job well.
We zip our bags (both Marmot Never Summer, one long one regular) together and use it as a big blanket.
So far it was always too warm to sleep inside the bag, but that will change in a few months.
I was a bit worried to bring a down bag to such a wet areas as Scotland and Ireland.
But we have a good tent and it works out well. Every time the sun shines we air the bags.
It is great to have a good sleeping bag so you know you are safe and comfortable up to -20 degrees.
I wish i would have had this bag when I crossed Tibet.
Trust in your gear is peace of mind