FLOAT Boston, in Somerville, will bring back its popular summer float challenge program starting July 1, 2023. All summer long, anyone that floats three times in one month will receive a fourth float for free.

“The research we have on the benefits of floating indicate that the benefits are cumulative,” says Sara Garvin, FLOAT’s co-owner. “Even one month of floating weekly can really accelerate the rewards people get from floating.”

FLOAT will also expand its Monday Community Hours to a second weekday morning through September with floats before noon being discounted 50 percent.

Floating aids the brain and body in relaxing and disconnecting from environmental stimulation which has been linked to increases in pain, anxiety, depression and other ailments exacerbated by stress. Individuals effortlessly float on a bed of water that has been saturated with more than 1,000 pounds of Epsom salt. Float pools are in rooms that are both soundproof and lightproof, and tightly calibrated, so that both the water and air match the skin’s temperature.