Off the Beaten Turf: The Sensory Deprivation Tank

by Shilpi Paul

The sensory deprivation tank at Hope Floats.

In this edition of Off the Beaten Turf, we tried out an experience that was a welcome break from our typical plugged-in, email-checking state: spending an hour floating in the pitch-black, soundless peace of a sensory deprivation tank.

As the name suggests, the tank frees you from (almost) all sensory stimuli by allowing you to float in body-temperature salt water in a quiet, dark chamber. The tank was developed by scientist and physician John Lilly in the 1950s as a way to test the effects of sensory deprivation. Soon, Lilly and others realized the meditative and mind-expanding potential, and the tank took off as a form of therapy.

Proponents of the sensory deprivation tank believe that by ridding your body of sensory stimulation your mind will be free to reach usually-inaccessible levels of relaxation. Some believe that this opens the door to creative thinking, problem solving, powerful visualizations or more spiritual experiences.

In the DC area, interested floaters can visit Hope Floats. Hope Floats opened up just four months ago in a most off-the-beaten location: the basement of a single-family home in suburban Bethesda. The owner has a single tank that can be rented for 60 or 90 minutes, but is currently looking for a retail space where she can put in two tanks, as well as a non-enclosed flotation pool.


Right now, the spa environment doesn’t quite exist. The waiting room doubles as the family rec room, complete with basketball nets, and the family dogs happily sniff around. But the benefits of the tank are not diluted, and interested patrons were constantly filing through to spend $70 for one hour in the tank.

After signing a waiver attesting to my mental health, I took a few preliminary steps: scrubbed up in a shower, donned a robe, put in ear plugs, and then went into a small room with the tank, which is essentially a shallow bathtub that is completely enclosed. Upon entering through a hatch (sans robe), I took a supine floating position in the tub and closed the door to complete darkness. The water is saturated with Epsom salt, which increases density to make you more buoyant.

My body floated with no effort and my face was completely out of the water (though my ears were submerged). Breathing was easy, though there is a little humidity in the tank. The pitch-black darkness somehow counteracts any claustrophobia, because you are not aware of the walls or of any boundaries. There’s a bit of a learning curve, which is why Hope Floats offers a second “dip” for free; most newcomers spend 15-30 minutes adjusting before they can completely relax, the owner told me, but the second time, they can sink right into it.

On my first attempt, it indeed took me several minutes to adjust to not having to adjust. My limbs also bounced gently off the walls for a few moments before I reached an equilibrium in the center of the tank. Though the water supported me, it took a little while to give in to that feeling and release all of my muscles. After ten minutes, I realized I could release my straining neck; after another ten, I found a position for my arms that released the tension in my back. After that point, I began to feel less distracted and more relaxed.

Eventually, many people start to lose realistic awareness of their bodies. Maybe their limbs become heavy, or the space begins to feel vast and endless, rather than compact. Some claim to experience hallucinations.

After reaching the relaxation point, everyone in my group went on to have slightly different experiences. One person was able to relax his mind into a meditative state for about 30 minutes and came floating out of the room smiling like the Buddha. The other appreciated the healing properties of the floating mechanism, which relieved her long-standing back pain for at least a day.

I had an undoubtedly relaxing experience, but may have a reason why I wasn’t quite able to reach a detached meditative state. When my awareness of all other sensory input dropped away, I was left with one, cute, spontaneous and unceasing distraction: my six-month-old fetus wiggling and kicking in my womb.

In a world that invented Google Glass, full of sensory stimulation, many of us spend our days constantly reacting to emails, tweets, text messages and other sorts of electronic beeps. And even the most relaxing, off-the-grid vacation involves some sort of sensory activity. When all the stimulation is shut off, what will you be left to think about? If you’re interested in finding out, take a trip up to the sensory deprivation tank at Hope Floats.

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This article originally published at https://dc.urbanturf.com/articles/blog/off_the_beaten_turf_bethesdas_sensory_deprivation_tank/7475


  1. Jeffrey said at 2:15 pm on Tuesday August 20, 2013:

    This is just like the one in the AbFab episode!

  1. Zesty said at 4:32 pm on Tuesday August 20, 2013:

    That’s why we love America; you can make money selling anything…...no literally, people sell Flavored-Air, Filtered Dog Water (for the same dog that will lick another Dog’s bottom), Pet Rocks, and now it’s a dark room with water in it (sounds like a Bathtub with the lights off and doors closed).

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