I've actually done some weighing to sort it out.

NeoAir medium - 13 oz
20F quilt - 22 oz
tarp - 15 oz
groundsheet 2mm plastic - 3oz
53 oz setup
times waking up at night: 5-10
Advantage: a few ounces lighter than the tarptent

NeoAir medium - 13 oz
tarptent sublite sil - 24 oz
20F quilt - 22 oz
59 oz setup
times waking up at night: 5-10
Advantage: lighter than other solutions, bug protection, sets up easily even on rock

Blackbird hammock - 28 oz (whoopie slings instead of the stock straps)
2 20F quilts 44 oz
tarp - 15 oz
93 oz total
times waking up at night: 0, nada, zip, even when some doof tripped over the guyline.
Advantage: ready to hike 20 miles tomorrow, waking early without groaning about it, no stiffness or soreness, warm, weather worthy, bug protection, off the ground

Sierra Designs Lightning XT solo tent, double wall - 50 oz
NeoAir medium - 13 oz
20F quilt - 22 oz
75 oz total
times waking up at night: back to 5-10 times
Advantage: ???? I guess if I had to set up in sand it would be easier than the non freestanding tarp or tarptent

Blackbird hammock - 28 oz (whoopie slings instead of the stock straps)
20F quilt 22 oz
NeoAir - 13 oz
tarp - 15 oz
78 oz total
times waking up at night: 1 or 2
Advantage: have pad to sleep on ground if needed, weather worthy, off the ground

I've always had difficulty understanding people who are willing to sacrifice sleep and suffer the sore joints. But I guess there are those who think 20 oz is a huge difference. I'll just leave the playing cards, bucket, extra meal and some water out, and filter more often.