It's pretty fun, but it's one of the only games I've fallen asleep to, which is a crazy feat since I was playing on my pc, sitting in my computer chair.
I'very also fallen asleep while playing it on console, but I was laying down in this super comfy chair.
The other games I've fallen asleep to are :
FFX Tales of vesperia Animal crossing TES Oblivion
In ffx I fell asleep in one of the temples. I had stayed up until like 3 or 4 in the morning, so it was almost unavailable.
In vesperia, I fell asleep during a cut scene
Animal crossing is super relaxing and I've fallen asleep multiple times while playing.
For oblivion, I fell asleep during a loading screen lol. It had pretty long load times on xbox360
