If you intend to go rock climbing or camping, you’ll want to get the proper type of tent. If you like extreme hiking, there’re many sleeping choices out there for you to choose from. For extreme ice climbing or climbing, you will wish to acquire expedition tents. You might also get special expedition tents like a 1 man tent or a bivy sack. One person tents are transportable and light while bivy sacks are like sleeping bags that double as a unique tent.