The ask was twin arched bookshelves to go on either side of a bed, like the following reference photo. Howevere these were to sit on top of some existing nightstands.

We started with a couple ikea bookshelves. I have mixed feeling about this. While I think it can be an excellent timesaver to start with factory-made furniture and customize as you like, I personally dislike chipboard and laminate, and I try to avoid them if given the option. Each material has it’s own vibration, some more pleasant than others. I picked up a bundle of oak molding, wide enough to give me a few options for creating the “shell.”