Somnetic Inducer
From Star Trek : Freedom's Wiki
A small neural pad used to aid the induction of sleep in humanoids.
The somnetic inducer is simply put next to the bed of the sleepless person and will help the patient fall asleep.
When Geordi La Forge suffered from sleeplessness due to brainwashing by Romulans in 2367, he came to sickbay and Doctor Beverly Crusher gave him an somnetic inducer to help him sleep. (TNG: "The Mind's Eye")
