Almost no one sleeping outside of a tent, or in selfmade shelters here. Selfmade shelters are more of a problem of material availability though. I guess more people would make them if there was more material around that you could use.
I do not like modern sleeping equipment in the tent. (Camp beds, lamps etc.) although, on cold weather, a sleeping bag is fine, as long as you cover it with something else, so the public wont see it.
I generally avoid using this stuff though, I decided to only sleep on the straw with a few blankets, or if there is no straw, directly on the ground.
I am not a big fan of big tents either, you know the stuff that people put up to sit under, in case it is raining.
Normal tents are okay, they would have had these on occasions, but this big tents that are just there to sit under? They look stupid and I bet that they are 100% inaccurate the way that they are used at the moment. Maybe the general staff had stuff like this, but I do not think that a normal soldier would have had tents like that. Afterall, most of the time, they wouldn't have had any tents at all.
That really bothered me when I was in GB last time. Everyone was using modern camp beds, and there were plastic planes looking out of the tents everywhere. But that is what you get when there is no straw available.