Float Therapy goes by many names: Floating, Floatation (or Flotation) Therapy, Floatation REST (Reduced Environmental Stimulation Therapy) , Sensory Deprivation, Sensory Reduction, Float Session, Float Tanks, etc... Float therapy is the act of lying in a shallow dense solution of Epsom salt and warm water in a quiet, and dark room - typically for the purpose of meditation, relaxation, or pain relief. Floating gives the user's mind and body a break from the constant mental and physical sensations we experience throughout our daily lives. To float is to experience nothingness, if only for a short time.