This a pic of the Little Mo, because our brand new Big Mo, is too big for my little dude who isn't quite 2 yet. He loves his sleeping bag, and as his parent, I love that he stays warm and cozy all night, even when the temp drops. We have used the Little Mo, everywhere, from backpacking in mountain terrain to RVing, in a Yome in the high desert and in our car camping tent at the coast. It's the one consistent thing on our adventures that makes bedtime super easy!