Echo question

Echo Question is defined as “a repetition of a prior utterance. The main function of an echo question is to clarify the form or content of the prior utterance”.

Example(1)
-Explainer: ['How much sleep do you get, typically?']
-Explainee: ['During the summer?', 'Like 10 hours.']
-Explainer: [10 hours?] -->Echo Question

Example(2):
-Explainer: ['Okay.', 'How long are the naps that you take?']
-Explainee: ['Anywhere from between one to six hours.']
-Explainer: [One to six hours? "That's a long nap."] -->Echo Question