If you're camping somewhere like Alaska during the cold season, or your camping in the winter, that's really the stuff for an experienced camper, and it's definitely a trip you want to make sure you do your research and homework before you go.
But for the average camper, for a beginner camper, it's pretty easy to stay warm in the summer months, in the fall months, and in the spring. You want to just make sure you've got the right sleeping bag. Sleeping bags are rated based on temperature. So you really probably just need a three-season sleeping bag. What that means is that it's good for the spring, the summer, and the fall.
Another thing is you just want to make sure you bring layers. Layers are what your mom always tells you to wear and they're also really good for camping because the weather changes quickly. There's nowhere to escape the weather when you're camping other than your tent. That's not very insulated, so you need to make sure you dress in layers, stuff to take off and stuff to put on.
Another way to stay warm when you're camping is with a campfire. You need to be careful that you're not sitting too close, that you're starting a fire in a ring or a designated area, but a fire is a great way to stay warm when you're camping. You don't want to do it too close to your tent. Don't get any ideas that if I light the fire really close to my tent I'll be able to warm my tent. That's just not a safe plan.
But, fire is a great way to stay warm. Layers are a great way to stay warm. And then, a good sleeping bag. It's really pretty easy to stay warm if you're camping during the spring, the summer, and the fall.