Floatation therapy

What is floatation therapy?

Floatation therapy, often called float therapy, is a natural relaxation practice where the body is supported effortlessly by water saturated with Epsom salts (Magnesium sulphate). The concentration of salt creates an easy buoyancy, allowing you to float without effort. Both the water and the air are carefully regulated, removing sensations of warmth or cold, and the awareness of where the water ends and the air begins. With gravity effectively neutralised, and the body so perfectly supported, muscles release, joints decompress, and the spine gently unloads.

The environment itself is intentionally simple. Light and sound are greatly reduced, giving the nervous system a rare opportunity to downshift. As external stimulation fades, physical tension softens and mental activity begins to quieten, often within minutes ^{1, 2}.

From a scientific perspective, the state is known as Floatation-REST which refers specifically to Restricted Environmental Stimulation Therapy — a controlled environment where:

• Visual, auditory, tactile, and proprioceptive input are greatly reduced.
• Participants float supine in warm, salt-saturated water.
• The environment minimises external sensory stimulation ².

Floating first gained scientific attention in the 1950s through the work of neuroscientist and psychoanalyst Dr John C. Lilly. Today, research from institutions such as the Laureate Institute for Brain Research continue to explore its benefits for stress, sleep, anxiety, pain, and emotional wellbeing.

Why floating has so many different names

Floating didn’t begin in spas or wellness centres — it began in research laboratories. As the practice moved from scientific study into commercial environments around the world, the terminology evolved with the equipment. Different industries, regions, and eras all influenced the modern language of floating.

Floatation therapy, float therapy and flotation-REST — what’s the difference?

As floating has grown in commercial settings, two main terms have become common: floatation therapy and float therapy. They are essentially the same wellness practice, but with a subtle difference. Floatation therapy emphasises the buoyancy, float therapy the relaxation, although the average float client would not distinguish between the terms. Scientific research literature prefers the more precise and neutral term flotation-REST.

The many names for floating explained

Isolation Tank

The earliest float environments were known as isolation tanks, or sensory deprivation tanks — fully enclosed chambers created in the 1950s for research into sensory reduction. While groundbreaking, their enclosed nature could feel intimidating, inspiring later designs to become more comfortable and welcoming.

Sensory Deprivation Tank

In the 1970s and ’80s, the term “sensory deprivation tank” became more widely recognised through psychology studies and media coverage. Although accurate from a scientific perspective, the word “deprivation” often sounded harsh, prompting many centres to adopt the more welcoming term floatation therapy, or float therapy.

Meanwhile, in the late 1970s, the term, “Restricted Environmental Stimulation Therapy” (or R.E.S.T.) came into professional use as scientists began studying the therapeutic benefits of the technique.

Today, most people focus on what the experience offers — deep relaxation and restoration — rather than what it removes.

Float Pod

Float pods emerged in the UK in the 2000s as compact, modernised environments with curved designs and integrated features. Popular in North America, pods offer a more appealing enclosed experience compared to tanks, though some first-time floaters prefer more space, while more space sensitive people still express reluctant at trying the experience.

Float Tank

While describing the original, more box shaped float tank, the term “Float tank” is also the universal term used worldwide for any float environment — pods, cabins, or rooms — and is the most common phrase in academic literature.

Float Cabin

Common in Europe and parts of Asia, Float cabins offer upright entry and increased vertical height, aiming to attract a market segment not captured by pods or tanks.

Float Room

The float room, 1st conceived in the UK in the early 1990s, evolved to represent the fully expressed, modern evolution of floating — full-height interiors, silent airflow, soft lighting, and a calm, spacious feel. Float rooms preserve the precise conditions required for deep floatation-REST while removing all sense of enclosure found in pods and float tanks.

Float Pools

There have been occasional float pools since the late 1990’s, but they have slowly grown in popularity and now have their own niche market. The room or suite, that the pool is in becomes the float room. This large space has to be precisely controlled environmentally so the client experiences the full benefits of the float.

The benefits of floatation therapy

This is where the real value of floatation therapy lies. Within 5 to 15 minutes of floating effortlessly, the body begins to relax ^{2, 3}.

Muscles soften — Breathing slows — The background noise of thought starts to quieten ^{2, 3}

Muscle tension reduces significantly during floating, relieving pressure on joints and the spine, making it a powerful tool to aid physical recovery. Athletes and active individuals use floating to reduce soreness and support faster restoration after training ^{2, 4, 5}.

Mentally, floating offers a deep sense of calm. Because external distractions fade away, the brain can shift from high alertness into a slower, more restorative rhythm, similar to the deepest meditation, but not the same. Floating seems to create a unique brain state — not “normal awake,” not quite “sleep,” but something in between: an altered state of consciousness ⁶.

Sleep improvement is one of the most common effects. Regular floaters often fall asleep more easily and wake less during the night ^{5, 7}. Magnesium absorbed from the Epsom salt may also support muscle and nervous-system relaxation.

Floating can also nurture creativity and clarity. It is possible that without constant stimulation, the mind can make new connections, process thoughts more naturally, or simply experience a rare moment of uninterrupted stillness ⁸.

Beyond measurable outcomes, floating offers emotional space — a chance to decompress, reflect, and reconnect with yourself.

Common misconceptions & claustrophobia

Many people imagine floating inside a small, dark capsule — an image left over from the early scientific tanks. Understandably, that idea can prevent people trying the experience, while make newcomers hesitant.

Modern float rooms, however, are designed to feel tranquil, calm, and spacious. There is no lid above you. You can float in complete sensory rest, or with soft lighting, gentle music, or even with the door slightly ajar. You remain fully in control throughout the session.

At open days and exhibitions, over 95% of people describe float rooms as far more inviting and spacious than they imagined — easing those with concerns immediately. Modern float rooms prove that floatation therapy isn’t about enclosure; it’s about the deepest rest on earth experienced in freedom, comfort, and calm.

Innovation and design — from tanks to rooms

When the UK’s first commercial float centre, The London Float Centre, opened in (Clapham Common) in 1986, floating was still closely associated with enclosed tanks. Ron Kemeny saw the promise of floating but recognised he was missing many potential customers. Many people were hesitant to try it because the environment felt intimidating.

He believed floating needed to feel welcoming.

After years of development and testing, he swapped out his float tanks with float rooms in the early 1990s, and his business took off. He had preserved the purity of floatation-REST while creating a space that felt inviting, architectural, and effortlessly calming. It was the birth of the Ocean float room — a walk-in, full-height environment designed to blend technical precision with aesthetic comfort.

Engineering the float room required meticulous refinement. Airflow had to be silent but effective. The environment needed to remain as stable as a float tank. Complete sensory rest has to be achieved. Over more than three decades, these details have shaped float rooms into environments that are both reliable and beautifully simple to use.

Many Ocean float rooms installed over twenty years ago are still in daily use — a testament to durable materials and thoughtful engineering.

From the beginning, our designs prioritised accessibility. Spacious interiors, simple step-in entry, adjustable lighting, and intuitive controls make float rooms suitable for clients of all ages, including pregnant women and those with mobility needs.

Learn more about our journey in Our Story

Floatation therapy around the world

Floatation therapy may have started as a scientific experiment, but it has become a worldwide movement embraced by wellness centres, dedicated float centres, hospitals, mental-health practitioners, physiotherapists, athletes, artists, and everyday people seeking calm.

Across the UK and Europe, float rooms and cabins are widely used for their spacious design and spa-like atmosphere. Many centres incorporate floating into broader wellbeing pathways alongside massage, heat therapy, and hydrotherapy.

In North America, float tanks were initially the main option for operators, then pods and rooms appeared. As the market matures, many centres and are expanding into float rooms to welcome a broader audience, including those who prefer more space.

In Australia, New Zealand, Japan, and Southeast Asia, floating appears in high-end spas, float centres, wellness centres and sports performance programmes.

Research into Floatation-REST continues globally, exploring its potential in stress, chronic pain, PTSD, and sleep.

Ocean Float Rooms supports installations across the UK, USA, Canada, Europe, Japan, Australia, and beyond. You can explore selected clients float centres on our global client’s page.

See international examples in Global Clients.

How to experience floating for yourself

Floatation therapy is best understood by doing it. Many first-time floaters are quite amazed at the experience — a feeling of weightless calm that’s difficult to imagine until you’ve experienced it.

Most major cities now have float centres or spas offering floatation therapy.

Our advice to you when choosing where to float

With more than 35 years of experience in the float world — including running our own centres, in 2 countries: the first commercial float centre in the UK in 1986 and the 1st float centre is Brisbane in 1988 — we’ve seen and learnt first-hand what helps someone feel truly at ease during their first float. Your first float should feel calm, welcoming, and easy, and the right environment can make all the difference, especially if you’re new to floating or unsure what to expect.

Finding a float centre near you

When choosing where to float, look for:

• Private float facilities rather than shared float pools
• Professional guidance for your first float
• High-quality water care and maintenance
• Ideally, a chillout space to rest and integrate your float for longer lasting benefits

Many centres offer introductory packages of three floats — an excellent way to experience how sessions deepen over time.

Explore trusted float centres in our Global Float Centre Directory

Closing summary

From isolation tanks to float rooms, the language of floating has changed, but the purpose has remained the same: to give the body and mind a space to rest, recover, and reconnect.

At Ocean Float Rooms, we’ve spent more than thirty years refining that experience — creating environments that feel as beautiful as they are effective. Whether you float for relaxation, recovery, creativity, or emotional balance, the essence of floatation therapy is universal — weightless calm in its purest form.