I'll give you a question, please answer with step-by-step reasoning process.
If the temperature was really high, what is a likely reason for awaking in the middle of the night and being unable to fall back asleep?\nOptions:\n- having to pee\n- discomfort\n- depression\n- irritability\n- shock

discomfort
Discomfort is the feeling of uneasiness.

Highs temperature while sleeping causes uneasiness.

.

The answer is discomfort