For the guy who thinks KSBs don't burrow
Camy builds them all the time and will frequently sit there with her head slightly popped out or just slightly inside it for awhile. These burrows provide comfort and activity for KSBs. I'm sure I'll get down votes and people saying not to use sand or aspen but don't really care as Camy is beyond healthy and very happy and active! Best of luck to you all and do what works for you and your KSB!!!