Another ultra-light way to skin this cat is a floorless tent paired with a tyvek footprint and "nest" (independent inner net tent). These allow you to use the interior as regular double-walled bathtub-floored tent, OR a giant vestibule where you can cook, leave your shoes on, set-up a camp chair, fix a flat tire, dig a cathole latrine, and even run a wood burning backpacking stove (hot tent), .... just by collapsing the inner tent and folding the footprint back.

After using one for a year, I now find fixed floors/bugnets to be an impediment better at keeping me out, than the bugs out.