We purchased this bag for our 3 yr. old, and what the product description neglects to mention is that the bottom of the bag is nothing more than a thin liner, where the custom pad insert is. It is not insulated material! Therefore if you don't buy the separate pad along with the bag, your child will be sleeping directly on a pad with no warm material in between. This can make for a long, cold night in chilly mountain weather for your little camper! I see now why the bag is so well priced - you're only buying 2/3rds of a bag!
It's a warm bag otherwise (we put a blanket beneath him), and the mummy hood was a hit with the little one. Zippers are a little tough to operate though.
This review was written in the old system and had content requirements that are different than reviews written today.