Ya I believe its due to the weather changing, im not an expert or anything but that's when she started doing it. Probaly for about the last month, and in the summer she would only bury herself half way so I could still see her. Little bugger, I dug her up lastnight to feed and she must not of been to be happy with me. Because this morning before she decided to bury herself again she thought it would be funny to plop her but beside her water dish I just changed and plow a bunch of coco fibre into it. She then hopped over to her favorite spot and buried herself. LO.L And im glad my question could helped you out Hydromaestro.