Rae made a small fort at the top of a suitable tree, and Karl climbed up tot see what she had provided.
It was just an enclosed hammock, little more than a cocoon of the sort she would create for prey, but it was enclosed, and there was sticky Royal Rank silk all around it to catch the unwary intruders.
That would do the job.
Most of what Karl wanted out of the sleeping arrangement was just to not be detected by monsters, and this would work wonderfully for the task, as it would hide his scent, keeping the wind from revealing his location, and it would keep enemies away for long enough that Karl could prepare himself and Rae could come out.