Why mosquito net?

Because nobody warned me, probably because nobody thought about it, and for those who've experienced it, it's normal, but the princess-like mosquito net strongly limits space. Even if it's a double bed, you can only sit up in the middle; on the sides you bump into obstacles; it is not recommended to suddenly wake up from a bad dream, and I don't want to imagine (or actually, to be honest, I'm rather curious) how the one on top avoids getting tangled.