Consumption is another word for Tuberculosis (TB). It usually attacks the lungs and spread through the air when those with the disease cough, sneeze, or spit. When TB goes untreated, like in Sally Jean's case, it kills more than half of those who have it. Symptoms of TB include coughing, fever, night sweats, and weight loss.
Source: Wikipedia - Tuberculosis
Sally Jean's lungs have been so damaged by TB that she requires an oxygen tent.
An oxygen tent is a device held in place over the head and shoulders to give the patient a higher concentration of oxygen than the human body usually requires.
The Metropolitan Opera House is is considered to be one of the most prestigious opera stages in the world, as well as one of the largest. It's on Broadway in New York City. Those attending a performance at the Met often wear floor-length gowns and tuxedos to openings nights or important events. Regularly, women will wear skirts and dresses with heels while men wear suits or blazers and dress shirts.
Sleeping Beauty is a classic fairy tale originally published in 1697 by Charles Perrault. In the story, Sleeping Beauty is awoken from a curse by the kiss of a handsome prince.