Which class is associated with Sleep Latency decreasing and Sleep Efficiency increasing?

• A. SSRIs/SNRIs have Sleep Latency decreased and Sleep Efficiency increased
• B. Tricyclics have Sleep Latency decreased and Sleep Efficiency increased
• C. Non-Benzo Hypnotics have Sleep Latency increased
• D. Benzodiazepines have Sleep Latency decreased

Answer: (B)

Understanding how different sleep medicines affect how quickly you fall asleep (sleep latency) and how much of the time you’re in bed you’re actually asleep (sleep efficiency) is key. Tricyclic antidepressants tend to have strong sedating effects, which helps people fall asleep faster and stay asleep more soundly. That combination—shorter time to fall asleep and a higher percentage of time spent asleep—fits the description of decreased sleep latency and increased sleep efficiency.

Other classes don’t fit this pattern as cleanly. SSRIs and SNRIs often worsen sleep initiation or overall sleep quality rather than consistently reducing the time to fall asleep. Non-benzodiazepine hypnotics are designed to improve both onset and maintenance, typically reducing latency rather than increasing it. Benzodiazepines can reduce sleep latency, but their impact on sleep efficiency is variable and they can disrupt sleep architecture with longer-term use.

So the class that best matches the idea of shorter time to fall asleep and more efficient sleep is the tricyclic antidepressants.