If you have been waking up too early for several weeks, you are probably suffering from ________.

A) insomnia
B) parasomnia
C) hypersomnia
D) reverse insomnia

Insomnia is a sleep disorder characterized by difficulty falling or staying asleep, or waking up too early and not being able to fall back asleep. As such, waking up too early for several weeks is a symptom of insomnia. Parasomnia refers to abnormal behaviors or experiences during sleep, and hypersomnia refers to excessive daytime sleepiness. Reverse insomnia is not a recognized term in the field of sleep medicine.