I'm still not clear on whether they "one eye open" thing is all night or just right after "lights out". I don't think it's uncommon for them to "cool down" in their sleepy pose with one eye open for a bit.
If you are concerned about eating, then definitely fill out the form. Don't just try to do it from memory, go copy it, paste it and then type in your information.
I do know that chameleons typically slow down on their eating when they start coming into adulthood. 7 to 8 months is about right for that. Eating like an adult is not a problem for an adult. You cannot expect him to eat as much as he did when he was young. But as you are concerned, you really should fill in the form.