Base weight, hmmm. I have a rock crawler jeep wrangler and stockish Toyota Tundra. I camp out of both, but never more than a week, so YRMV.
2.5 man backpacking tent with foot print, ~7 lbs
Helinox cot, 2.8 lbs
Inflatable sleep pad, ~1 lb
Sleeping bag, ~2.5 lbs
Pillow, ~1 lb
My sleep system...