If you propose to go ice climbing or camping, you will want to get the right kind of tent. If you like intense hiking, there’re a number of sleeping choices out there for you to choose from. For extreme hiking or mountaineering, you will need to get expedition tents. You might also secure special expedition tents like a 1 man tent or a bivy sack. One person tents are portable and light-weight whereas bivy sacks are like sleeping baggage that double as a special tent.