Cage covers: we have a room which gets quite dark at night so for our guys
we find that a good quality black sheet sewn so that it is doubled keeps
out light as do polartech blankets but the sheets are a lot cheaper.  The
ferrets LOVE it and we now have to always keep part of the cage always dark
because they so enjoy that -- they know that burrows are right for them.
[Posted in FML issue 2704]