By means of this spell, the spellcaster causes a being to fall into a deep slumber similar to the hibernating sleep of dragons. While in this state, the being does not require food, drink, or air, and ages only a single year per century. This magical slumber can only be ended if the being is killed, dies of old age (a process that usually takes millennia), or is touched with a fragment of dragon bone, no matter how small. Dispel magic, remove curse, such general remedies do not work. In addition, immunities and magical resistances to the common sleep spell do not work for sleep of dragons.
The recipient of this spell must be touched by the priest. Unwilling targets who have been touched may avoid the effects of this spell if they make a successful saving throw vs. spell modified by their magical defense adjustment for high or low Wisdom.
The material components for this spell are the priest's holy symbol and a thimbleful of dragon's blood.
Notes: Granted by the evil dragon god Tiamat to human worshipers.