Answer:
Monday was sweltering, and I just wanted to stay in bed.
Step-by-step explanation:
In the given sentence, the term, "really hot," is somewhat wordy and sounds childish. This word can easily be replaced with a similar term, such as "sweltering." By replacing "really hot" with "sweltering," the sentence sounds more professional and uses less words to get the same point across.
Other words to replace "really hot" also include blazing, humid, and scorching!