If you're in a remote area, you can use your natural surroundings.
IE: palm tree leaves and various shrubbery, sliced up and laid down in a somewhat ergomic way for this in the tropics. pine needles in the boreal forests, snow in the arctic... etc !
Are you "car" camping or backpacking? If you're car camping and you got a big enough tent, or if you really just dont like sleeping on the ground or can't. Get an air mattress. If money is not an object, or you're cozyness is more important, get an aerobed.
I do alot of car camping and festivals. Without this air mattress and tall tent (i can stand up no problem, near 6') It would be impossible on the 3 herniated disc in my spine. I don't even own an aero-bed, although when this current coleman airmattress dies we're getting one.
when hiking miles into the forest for camping lots a marijuana(mostly extracts if you can), edibles and alcohol. im a beer guy threw and threw so a 40 in the back pack helps for an easy night getting to sleep way out in the middle of nowhere.
hi there fella i do a lot of wild camping i dont sleep in a tent but a us gortex bivi bag and a tarp..but i just bought a hammock and you
get an excellent sleep and no need for padding for the ground...atb shogun
i try and bring a case of booze. tequila and whiskey mostly. i sleep like a rock. wont help if your backpacking tho. my self inflating pad works great but its a bit narrow.
if you're parking close to your campsite then buy a couple of straw bales to bust up & spread under your tent site, not only will your base be softer but the straw has insulating properties to keep you from the chill of the ground as well. you can either leave the straw behind or burn it up in your last fire.