I sleep in a tent or shelter a good 100 nights a year.
Your girl will be so horny watching you swing an axe and start a fire and all that shit. It'll bring her back to the caveman days when she just sits in the tent and watch her man take care of shit, her instincts will have her spread out on the picnic table waiting to be served. If that doesnt work just say 'listen bitch, nobodys gonna here you scream for help out here'. I never take a lady out in the woods without a good supply of duct tape, rope, and zip ties.
And dont bang a chick on an air mattress or it'll go flat over night. Use a foam mat.