Dream Creepers will be able to float in the air while seemingly walking. They do not cross paths with Dream Spiders. They are found in groups of 5-12 at a time. If you look closely, they have the same patterns as a Dream Spider.
Befriended Dream Creeper
Once a Dream Creeper is befriended, it will always follow its owner. It has a float command. Miners can ride Dream Creepers while they are float, making them a fun ride.