No really, my feet get cold easily. I have vascular issues and anything below 60° makes it hard to keep my feet warm while I sleep. Even in the 60's-70's I need wool socks, though the rest of me sweats.
My "hammock sleep socks" are about as thick/warm as I can get.

We made 6oz Climashield Underquilts this past winter and they are awesome! Even though we followed the guidelines and triple checked dimensions, our full lengths settled in as a 3/4 lengths. We are hoping that our soon to be installed Secondary Underquilt Suspensions will stretch them back out?
This winter we will be making Top Quilts, to replace our 30° (realistically 40°~50°) mummy bags. We plan on using 6Oz Climashield again.

So should I maybe double up insulation in the Foot Box? I would prefer not to as this is a lot of extra bulk in the pack.

What about "Hammock Slippers"? Does such a thing exist? Maybe with left over quilt materiels? Is there a tutorial anyone knows of? Can I just buy a pair?
We are not great at the whole DIY thing but, willing to give it a shot.
Or, is this a dead end? As in, it has been tried and they do not work.
Sure would be lighter than a double thick Foot Box.

Any other suggestions? Besides hot water bottle.