User Review: PHD Minimus
Design: mummy no zip
Fill: 800 fill down
Temperature Rating: +5C (+41F)
Weight: 495 grams (1lb ish)
Price Paid: 140 UK pounds
I think the reviewer had been given mis-information about the bag.
The bag is excellent even down to freezing. But is NOT specified by the manufacurer as a cold weather bag. They rate it at 40F (which is what the other reviewer guessed would be believable temp. The ratings can be seen below -
I don't what advert was saying that it was good down to 20F, but it certainly isn't the manufacturer's opinion!