Here's something you probably won't see often here: a review of a video game soundtrack. This album is a loaner from a friend, who seemed a bit defensive in owning such an album, and - well, I guess I'd be defensive of owning such a thing too, but after listening, there's no reason to feel ashamed for owning an album affiliated with a product whose primary audience is 11 year olds. "It's good sleeping music," was the primary justification.
I have no idea if these songs are actually in Minecraft, or if they are inspired by Minecraft. I barely know what Minecraft even is - I thought it was basically Sim City with 8 bit graphics, but that's just a guess. Didn't Mike Tomlin just talk about a giant city he built with Minecraft? Maybe that's why I think it's like Sim City. They have coal mines in Pittsburgh (or they used to at least), and Tomlin coached the Steelers - but coal mining isn't really peaceful, so the game probably isn't about mining coal. I'm not a miner, a crafter, or a Minecrafter, but if the game is anything like this album, it's very relaxing and has meditative qualities.
The album is arranged in short vignettes that can range in mood from plaintive to mellow to pensive to uplifting to inspiring. They're are all slightly hypnotic, soothing, and are mostly short, sweet melodies that envelop you in a cocoon-like dreamstate. You might feel like you're buoyant at times, or melting. In a good way. But, the songs have a transient, liminal quality to them - they're too short to come to any satisfying conclusion, which is probably why it's good to do something else you're listening, be it resting, reading, petting a cat, or sipping a black-walnut old fashioned.
So, I would agree that this would make for good sleeping music, but also good focus music: no lyrics to distract you, no abruptness - just Eno-esque ambience to get you where you're going, as long as you're not in a hurry. The closest thing in my collection to this is probably by Air.