if it's bugs you are worrying about then you might want to take a look at the clothes here combining the bug head-net that has the spring in it with a poncho / sleeping bag would probably solve the mosquito problem. If you are worried about the creepy-crawlers as well then the bug-hammock and your poncho could solve the problem. These are inexpensive bug protection that pack lighter than a tent. If you will be on the move then the full suit of bug clothing might be the trick. You could even use it for a ghille suit - maybe. ( haven't tried that) I don't own the clothes but do own the head-net without the spring. works great! The clothing might not be that durable for bush-whacking but under a poncho should survive.