Dream selves operate from lavish towers on the moons of Prospit and Derse, in dream duplicates of their real bedrooms. Jaspersprite has shown inherent knowledge of the matter. Interestingly, Sollux has two dream selves, one for Derse and one for Prospit. This also creates an imbalance; in the troll session, there are 7 dream selves on Prospit and 6 on Derse. Aradia's dream self was long thought to not exist, due to her dying before her session began, but it was in truth asleep on it's Sacrificial Slab in the center of the troll's Derse. It was only awake for a few moments before dying and ascending to god tier.