Sleeve Cushion

What kind of protection should I have on my macbook pro in my backpack?
Should I have my macbook pro inside a hardshell, case, or sleeve while inside my backpack? My backpack isn’t very cushioned at all.
Right now I have an incase macbook case, but I think it’s a little bit big with all the extra straps and handles which I don’t need. I was thinking about getting a neoprene sleeve until I heard that they’re only good for avoiding scratches…
I’m about to be a freshman in college plus I do a lot of media work, what sort of macbook protection should I have?
Unfortunately I’m on a bit of a budget; I can’t afford anything more expensive than $40 so I probably won’t be able to get a backpack.
I would recommend a laptop backpack. They’re designed to keep a laptop safe.
Incase Neoprene Sleeve Review