Well, perhaps its the strong painkiller I've had to take 3 days straight for back pain. I can tell by the way they act when they see me or are interacting with me, but just looking at them, it's hard to discern what they're really thinking or feeling. When Snap see's me, she panics and hides, it's obvious she's scared. but just when I'm looking at them they aren't showing emotion, they usually lay around in the heat lamp area. I can tell when Ember is excited and expecting food when he sees me because he rushes over and rubs his nose on the glass, or on the finger where the food normally is. It's easy to tell when Squirt is feeling curious when he approaches my hand and has his tongue flicking a lot. It's hard for anyone to say that their snake is comfortable, especially when they don't know the snake as well. I'm more in-touch with Mama and Snakey, I've had them for almost 2 years and they know me. With Snap, Ember, Tiny and Squirt, I've had them for no more than 2 months and it's still hard to figure out what they like, other than lots of food in their bellies. I also cant say that my snakes are happy with or without a heat source, I don't feel what they feel. I'm not cold-blooded and I enjoy heat, but simply saying that its in the 70s in my room and that they are content with it may as well be completely false, each one of my snakes is different and has different preferences for heat. Tiny seems to enjoy being the closest to the lamp, as does Ember. Runt enjoys being away from the light and near the water dish where its coolest, and Snap stays, for the most part, under the lamp and under the sticks.