Basketball star Stephen Curry, celebrity Joe Rogan and a host of many other people say that flotation tank therapy helps them recover faster, improve mental and physical performance and guide self-improvement. Now you can experience the benefits of this uncommon therapy at Cloud-9, which recently opened on South Street. "Unlike modern medicine, rather than rely on dangerous surgery or an assortment of drugs, we use our non-invasive and harmless therapies," says Cloud-9's website. Cloud-9 provides float, PEMF (Pulse Electric Magnetic Field) and infrared sauna therapy. Float therapy is essentially lying in darkness while being suspended in a warm solution of Epsom salt. Float tanks can also be referred to as isolation tanks or sensory deprivation tanks.