Got a 6 month old leopard - beautiful! but a couple questions from an inexperienced dad.

This weekend he was sleeping from like 8pm till 4pm the next day (and in the shade - no direct mercury vappr light!)

I woke him up - then he is very active till about 8pm again. Is that normal?

I have been feeding him orchard grass and timothy hay but does not eat much of that. He would eat flowers dandilion, clover, hibiscus, pansies, and their leaves all day long, but of course gets full on that and then has zero interest in the grass. Should I not offer him anything but grass until he gets hungry enough? "experts" I've read say max 50% green leafy stuff, but mostly grasses - more than 50% if possible. Seems to me if I of
fer both he will only eat the leafy greens. Any suggestions?

Lastly, does anyone know a source for a "typical" or "healthy" growth chart for a leopard - lenght and weight?

Thanks for any help, Ben