I'm pretty excited about these responses! I looked into both. It does seem like it would be a fern, I'd been considering it was… though I'm afraid it doesn't seem (at first sight) that the suggestions for either bear paw or bird's nest fern are exactly correct.
I think bear paw's fern has a wider leaf, this guy here has rather narrow long leaves overall. And while the length seems to be more like the Birds nest fern, that suggested plant seems to be less dramatically wavy than what I have in the photo.
Might be good to mention that the leaves are quite sturdy too, definitely nothing you can easily bend. And wavy, very very wavy. :D
Also the root system is quite interesting. As you can see in the photo, the root is mostly above ground. It's quite an interesting plant to me :)
I've taken some more photos and added them, hopefully they can be of help!