The North Face Tigger is an excellent kids' bag and quite light for a synthetic bag. The two I bought for my grandkids 7 years ago are still going strong. The two older grandkids (11 and 13) are now in adult bags, but the youngest (going on 9) uses both Tiggers at home on occasion. Since he still has frequent accidents at night (runs in the family, unfortunately), the bags get washed at least weekly, sometimes more often. They still fluff up nicely!

I'm not too sure about the 20*F rating of the Tigger; I think that's only with plenty of warm clothing worn inside the bag. Probably nearer 30*F when wearing only a base layer.

If you sew, look up wandering_daisy's thread on the lovely sleeping bags she made for her grandkids! Of course now I can't find it! W_D, do you remember where and when you posted it? The bags were beautiful!