My BD still a baby, about 10in. and is sorta perched up on his tail and hind legs laying against the glass. It's his first night in the enclosure so i thought maybe it was him just being stressed and trying to get out, explore, etc. I turned off his heat lamp and UV light cause its starting to get late. Is this his way of going to sleep? I remember someone saying they might sleep in weird positions but sheesh that looks uncomfortable.