UPDATE: Legacy versions 5.5 and upward have a navmesh in rain's shelter, making this patch largely redundant.

The first file just adds a navmesh, so players using mods like go to sleep can watch their characters use the cot.
The second file additionally adds a larger shell and some campfires, all out of sight, so mods like Wet and Cold or Frostfall recognize the tent as a warm environment and don't leave you frozen stiff waking up.

Legacy is, obviously, needed.

Nothing of this is official, and I am very much a beginner, so use with care (at your own risk).