The pier/ferris wheel is important because it's a main object in the book, shown from their house and where Eddie worked. This resembles a feeling of reminiscence throughout Eddie and his storyline. The characters in the story also recognize the ferris wheel because it is at Ruby Pier, and is talked about a lot in the novel.
The hospital bed is also important because this is where Marguerite died, and where Eddie lost his lover. This resembles a feeling of sadness because she Eddie's love, and when she died, he lost himself. The characters also recognize the hospital bed because Eddie and Marguerite were there for the last of her life.