The kids' equipment is at least as important as the adults', if not perhaps even more important? If you are going to hike with an overnight stay in a tent, for example, both a sleeping bag and a backpack are needed, and if the kid is small, a baby carrier may be an alternative. Regardless, invest in a backpack and sleeping bag that is adapted to your kid's body. A kids' sleeping bag is, for example, smaller than a sleeping bag for adults to keep the heat better, and it is also common for kids' sleeping bags to be adjustable in length, which is a smart feature as the kid can wear the sleeping bag for a longer period.
