This is a personal project by @dellsystem. I built this to help me retain information from the books I'm reading.
Source code on GitHub (MIT license).
(adjective) of a kind likely to induce sleep / (adjective) inclined to or heavy with sleep; drowsy / (adjective) sleepy
With a somnolent underwater motion, she hammered the nail until it perforated the soft wood and joined the two slats