Were do you get the blankets for princess Rebeca's bed?

jk. yes you can.

It's a noun. Nouns are people, places, or things. In this case, "bed" is the object of the propositional phrase "off the bed." Objects of prepositional phrases are always nouns or pronouns.

No, it can be found in the W shop anytime.

On the Bed

Without some clothesline or string or other additional devices to hold up the blanket (a broom, an open door, anything really...)??? Well, I'd tip over the bed, maybe lean it against the wall, and...