>>2408061Well, it depends on your hot weather. In Finland if it is over 20°C in night, it is considered as hot weather. You may want some kind of a bag because human body temperature drops while sleeping and you may start feeling cold at surprisingly warm temperatures. Also, in army we were taught that you should always aim to sleep comfy and warm during exercises/expeditions because otherwise you would not recover from the last days stress and that shit builds up untill your performance is degraded down to the level when you are not able to fulfill your tasks and your risk of injuring rises.
Normally during summer here it is not out of ordinary for the weather to drop to around 10°C during nights though. If it is very warm during nights and I sleep outdoors, I may just pack a wool blanket and cover half of my body (or nothing at all) with it. Otherwise I opt for a dedicated sleeping bag with enough "reserve" in the comfort rating for the forecasted temperature.
>>2408067Well yes, but if the seams get torn due to the wind, at worst case scenario you will have no shelter from the elements
>>2407925Some kind of insulation (sleeping pad or matt, pine branches, leaves etc) is a mus, since you will loose a surprisingly large amount of body heat to ground. Back in boy scouts we had a saying that one layer between sleeper and ground is better than 6 layers between sleeper and sky. Foam mattress will do, it is just not as comfy as air filled ones.
Now you may call me as larper as you always will do.
