Sleep

Sleep is an effect players or monsters may encounter in NetHack. While asleep, you are immobilized for a number of turns. Sleep resistance prevents this from happening, as does free action.

Ways to fall asleep

 * Drink or be hit by a potion of sleeping
 * Be zapped by a wand of sleep
 * Put on an amulet of restful sleep
 * Step on a sleeping gas trap
 * Be attacked by a homunculus, orange dragon, Nazgul, or the Chromatic Dragon