Thanks you guys!! I was sitting on the floor with him last night and became overwhelmed at the thought of leaving him alone in an unfamiliar place!
This vet offers the drop off the night before and a stay the night after for observation for free. While I think is a nice courtesy to have the day after observation, I don’t think I will have him stay the night there on Friday. I am confident that I can watch after him and I think that staying afterward would just be unnecessary additional stress when I can bring him home and set him in his cage with a nice warm comforter. And no one will bother him! No doubt that’s more comfy than the vet! 
Since he is staying the night, I’ll send some extra hay. I’ll be a really nice mom and send him with a whole slew of what we have on hand: timothy, alfalfa, orchard and oat! And herbs! I’ll send him with his blanket, stuffy, and something of mine- maybe a scarf as Q8 said! They said I could bring his own litter tray if I want to, so that will be familiar. And there are heating pads in the “cages” so if he gets chilly he can warm up! I feel a little bit better knowing these things. I never thought to ask about bringing his own trays and such!