Along with handling job-related hassles, mena is struggling to keep up with her night classes. as the pressure mounts, mena finds that she is often unable to go to sleep at night or that she repeatedly wakes up during the night. mena's sleep disturbance is best described as:

Insomnia 3.

Explanation:

Insomnia may be defined as the condition in which the person is not able to sleep properly. This medical condition is also known as sleeplessness and a sleeping disorder.

Insomnia 3 is mainly characterised by the condition in which the individual is not able to sleep for the particular reason. The build up of pressure makes the individual sleep restlessness. The individual wake up repeatedly at night. Mena shows the condition of Insomnia 3.

Thus, the correct answer is insomnia 3.

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