The micro-phenomenology of Floatation-REST
BMC Complementary Medicine and Therapies November 6, 2025 Helena Hruby, Marc Wittmann, Stefan Schmidt et al.
Most people who float in a sensory isolation tank go through four distinct phases during a 60-minute session: acclimatization, a transitional phase, an altered state of consciousness (ASC), and finally reorientation. The ASC phase is marked by positive emotions, deep relaxation, loss of orientation in space and time, and reduced bodily sensations and thoughts. These characteristics emerge gradually and intensify over time. The findings suggest that the therapeutic benefits of Floatation-REST for mental health conditions may be linked to the experience of these altered states.