Condensation on the inside of a double wall tent is often factored by the temperature, humidity, and amount of ventilation. In warm, dry climates, with adequate ventilation, there will be likely be no condensation on the inside of your tent. In cooler more humid environments with no ventilation (tent windows all closed up) there will be some condensation inside. In either case, touching the sides will only result in a small amount of water getting on the outside of your bag. Ventilation is key. Condensation can be kept to a minimum if you leave vents open in your tent (many 3-season backpacking tents have mesh panels that are always uncovered to allow ventilation).
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