Well for that the only one of your specifications that matters is that I'd not buy one with a very old android version, just to be sure that you won't have an app incompatibility problem in the near future. Otherwise almost any tablet will handle that usage: there's no great demand on the cpu, streaming doesn't require a lot storage, most will have perfectly adequate screen resolution (unless you have young eyes and hold it close to your face), and if you are in bed I doubt it even needs to be very bright. You don't say what your sound preferences are (speakers, wired headphones or wireless), but it's only the first of those will vary much (an audiophile may differ, but these don't sound like audiophile uses).
I guess what I'm saying is that you don't require top-end specs for that purpose, or even anything close. I'd avoid devices with only 16GB storage unless you really are going to use it for nothing other than streaming video, because that's been below minimum spec for a while now. But otherwise I'd buy whatever you like and feel comfortable with (in every sense, i.e. feels OK to hold the way you will use it, quality feels good enough and price doesn't feel uncomfortably high). I do always recommend seeing the device yourself if you can, rather than relying on spec sheets or reviews.