I've been noticing this since I got Athena. She doesn't use her warm side hide. She spends all day in her cool side hide and then at night moves over and hangs out outside her other hide on the warm side. Both hides are identical. Temps are bang on. Any Ideas??? at least she is regulating her temps by moving back and forth, but she just doesn't use the hide. Other than that she is perfectly normal and has a great feeding response.