Insomnia

Insomnia is a mechanic in Minecraft that allows phantoms to spawn around players that have not entered a bed or died for three in-game days (1 hour or 72000 ticks). This value is specifically defined by the "Since last rest" statistic and cannot be altered through commands.

Insomnia may refer to:
 * Phantoms - phantoms may only spawn when a player has insomnia.
 * Sleeping - Sleeping or entering a bed resets the insomnia counter.
 * - A gamerule that enables or disables insomnia, and thus, phantom spawning.