(Bedrock) I had a thought. An idea. A really unimportant and slightly irritating to picture idea but I thought since we need the same kind of wool to make a bed then why not just bring it up a level and make it the same situation for the wood used by making different bedframe variations? It would work similar to doors and how they have many different designs. For something simpler, even just changing the color of the frame to match the wood used would make a small but meaningful difference. I think this would really add some spice to current base design and would really allow for a more personalized building experience. Maybe even allow us to make beds out of other materials, like an iron framed bed.
(Even with all of this said, regular oak wood beds HAVE to stay the same as they are since I can't imagine losing the classic red bed.)