In the early 1970s, John C. Lilly collaborated with Glen and Lee Perry to create the "Samadhi" float tank, aiming to bring floating benefits to the public. By adding Epsom salt to the water, they enhanced buoyancy, counteracting gravity and promoting deep relaxation. The first float center opened in 1973, sparking global interest in flotation therapy. The Float Tank Association formed in 1981, with researchers exploring REST therapy's medical and psychological benefits.

During the mid-1980s, flotation therapy experienced a significant decline, largely attributed to the AIDS epidemic. Public discomfort with shared water facilities, like pools and spas, led to a loss of clientele for flotation centers. Established centers faced closure due to reduced customers, and few new centers emerged until the late 1990s.

In the early 2000s, float tanks experienced a resurgence in popularity among the general public and spa community. Despite a previous decline, ongoing research yielded positive results, reigniting interest in the therapy. Centers worldwide began opening or reopening, fostering a strengthened and growing float tank community. By 2010, global events and conferences celebrated and promoted flotation therapy, rejuvenating the industry with the participation of professionals, researchers, and enthusiasts.

As alternative wellness practices gain traction, health and wellness practitioners increasingly recommend floating to their patients, family, and friends. The community of flotation therapy supporters is growing steadily, with centers worldwide reporting heightened interest. Enthusiasts anticipate mainstream acceptance, envisioning flotation therapy integrated into wellness practices and covered by health insurance. This expansion promises increased access to the myriad benefits of floating, fostering mind-body healing and strengthening