Wispy Cotton is a plant that only grows in the Spirit World, where it occurs naturally in most Biomes. It can be collected and replanted, but will only spread if planted in the Spirit World, on Dirt or Grass that is next to a pool of Flowing Spirit. If Wispy Cotton is harvested when someone is having a nightmare, Disturbed Cotton will be dropped instead. Both are important ingredient in making dream weavers. Disturbed Cotton cannot be replanted however. Having planted Wispy Cotton nearby when using a Brew of Sleeping near to a Dream Weaver of Nightmares will further reduce the chance of a nightmare by 10% for each cotton plant (up to 2).
Wispy Cotton will remain in a players inventory when they return from the Spirit World. | 
