Have you ever had a day that was just WAY TOO MUCH? Too much everything and you are like "Calgon, take me away.." (great commercial)! Sometimes a bath is the only escape. It's understood that when you are bathing, the door stays shut and no one is allowed to bother you (hopefully). Hmmm. This is the entry level of sensory deprivation. The ultimate level of sensory deprivation can be found in a float tank.
Float therapy, sensory deprivation therapy and REST (Restricted Environmental Stimulation Technique) are all the same thing. You float in a pool of water with all of your senses at rest: sound, sight, smell and touch. Float therapy has been used to treat ailments from Fibromyalgia to PTSD.
Apparently this type of therapy has been around since the 1950's but it has recently caught on and float therapy centers are springing up all over the USA and across the world. You can buy your own tank or some people have tried a DIY approach.
I think it may be a good idea to try it before you buy it. I hear it is a real psychedelic experience, kind of akin to being an astronaut in space. Some people really swear by it. I can't imagine doing it. I'm always covered with scratches and cuts because I have a very active lifestyle. I've windsurfed in the Gulf of Mexico in Laguna Madre and that was painful. High concentrations of salt really sting. In fact, I felt that it stung even places where I didn't have cuts. So, if the saline content is high enough in the sensory deprivation tanks to float an adult male effortlessly, there is one sense on me that won't be filling deprived. The sense of pain. Plus, doesn't salt water have a funky odor? Maybe one day I'll lay down half a Franklin and see what the hubub is about.
Have fun but don't float too far away...