Jazzniquia forgot to bring a pillow on the camping trip, so she spent a very uncomfortable and restless night. unfortunately, she never thought of using her down-filled jacket as a pillow. jazzniquia's oversight best illustrates:

I believe the answer is functional fixedness

functional fixedness refers to a personal bias that make a person become uncomfortable in using an object beside the way they traditionally use it.

This bias is cause by pre-developed habbit and could be erased after replacing it with a new habbit for approximately 12 weeks.

This is a representation of functional fixedness. This is a way of thinking that limits a person to only being able to use something in the way which it is traditionally meant to be used. It is originated in Gestalt psychology, which was a psychological movement that emphasized the holistic process.