I find that mine prefer to sleep all over, not just in hammocks or sleep sacks or in blankets at the bottom of the cage. They like variety!
I make my hammocks very similar to the description in the response you got from CAM. I make mine double or triple thick with an opening in the top that they can climb into and snuggle in, and use carabiner clips to hold it up. The way I have my cages set up, the hammock is fairly loose, and hangs just a few inches from the bottom of the cage. I put my fist in it and push down to make sure it doesn’t hit the floor with the weight of the ferret in it.
If you send me your snail mail address, I can send you a copy of my paper “pattern” and my directions.
I like to use cotton sheeting for the bottom outside layer for stability with flannel or a thinner fleece as the inside liner, and a thicker fleece for the top layer that covers the ferret while they sleep inside it. Or sometimes they just lay in it and hang their heads over the edge and try to make me think they are dead.
Diane Kromke
Di...@FerretsUnlimited.org