Hyperbaric oxygen therapy
What is hyperbaric oxygen therapy?
Hyperbaric oxygen therapy, or HBOT, means breathing oxygen inside a gently pressurised chamber, so your body can take in more oxygen than it normally could.
At Cocoon, HBOT is delivered as a guided at-home programme in Auckland — combining regular sessions, a personalised plan and ongoing support throughout your programme.
Commonly explored by people seeking support for concussion, long COVID, chronic fatigue, neurological conditions and recovery after injury.
More than access to a chamber.
How it works
A simple way to picture it
Hyperbaric oxygen therapy works by combining oxygen with gentle pressure. This allows your body to absorb oxygen differently than it normally would.
Here’s the basic idea:
Gentle pressure
The chamber is pressurised a little above normal air pressure, while you relax inside.
Dissolves into plasma
Oxygen dissolves directly into your blood plasma, not only your red blood cells.
Reaches further
That oxygen-rich plasma can carry oxygen into areas that may receive less under normal conditions.
Think of a fizzy drink
When gas is placed under pressure, it dissolves into the liquid — then, when the pressure is released, the bubbles appear. HBOT works in a similar way: inside the chamber, gentle pressure allows more oxygen to dissolve into the body’s fluids and tissues, increasing the amount available throughout the body.
Why people come to Cocoon
The experiences we hear most often
Everyone’s story is different. But many people who contact Cocoon are dealing with symptoms that have been lingering, recovery that feels slower than expected, or health challenges that are affecting everyday life.
They are often looking for ways to support their body’s own recovery and improve how they feel day to day.
- Feeling foggy, flat or mentally fatigued, and wanting to support clearer thinking.
- Living with ongoing pain, inflammation or discomfort that hasn’t settled.
- Running low on energy, and hoping to rebuild everyday stamina.
- Recovering from an injury, surgery or illness, and looking for ways to support recovery.
- Managing a long-term or complex condition, and looking for something to add alongside their existing care.
Whatever brings you here, the starting point is the same — a conversation about whether HBOT is a good fit for you.
Conditions we support
Conditions commonly discussed with our team
The experiences above can show up across many different health challenges. These are some of the conditions and recovery journeys most commonly discussed with our team — each has its own page with more information.
Concussion & Brain Injury
Lingering symptoms after a knock to the head.
Find out more →
Long COVID & Post-Viral Fatigue
Fatigue and brain fog that won’t seem to lift.
Find out more →
Chronic Pain & Fibromyalgia
Persistent pain that wears you down day after day.
Find out more →
Neurological & Dysautonomia
When your nervous system feels out of sync.
Find out more →
Post-Surgery & Injury Recovery
Support while your body mends after surgery or injury.
Find out more →
Athletic Recovery & Performance
Recovering well between hard training and events.
Find out more →Why consistency matters
HBOT is designed as a course, not a one-off
Hyperbaric oxygen therapy is typically delivered as a course of regular sessions over several weeks. The challenge for many people is maintaining that frequency when appointments, travel, scheduling and per-session costs are involved.
Most structured HBOT programmes involve around 40 sessions over several weeks.
That’s a lot of trips to a clinic — which is exactly where consistency tends to break down.
That’s why Cocoon was designed differently. With the chamber in your home, sessions fit around your life — making it easier to stay consistent throughout the programme.
At home
No clinic travel
Fits your routine
Use it when it suits you
Daily access
No appointment limits
Stay consistent
From start to finish
Consistency is one part of the Cocoon difference. Clinical guidance and programme design are the other.
The guidance behind it
Guided by Dr Gary Dennis
Founder of Cocoon
Gary’s interest in hyperbaric oxygen therapy grew from his own recovery journey following a serious brain injury. That experience shaped Cocoon’s approach — not simply providing access to a chamber, but creating a guided programme designed around the individual.
Today, every Cocoon programme is personally guided by Gary, combining home-based HBOT with ongoing guidance, support and review — so you’re never left to figure it out alone.
Dr Gary DennisDC (USA) • MMC (AUS) • Dip HBOT (USA) • NZCA
Personalised
Every programme is tailored to your symptoms, history and goals.
Guided
Regular support and review throughout your programme.
Home-Based
Designed to fit around life at home.
Programme Focused
Built around consistency rather than occasional sessions.
These four principles shape every Cocoon programme.
The Cocoon difference
More than a chamber
Most hyperbaric oxygen therapy is delivered in a clinic, one session at a time. Cocoon was designed differently — built around home access, daily consistency, and a guided programme rather than individual appointments.
Comparison is general; clinic models vary by provider.
Want to understand what a full programme costs?
See treatment plans →
Good to know
Common questions about Cocoon
How is Cocoon different from a hyperbaric clinic?
Do I need a referral or diagnosis to start?
How many sessions are involved?
What does a session feel like?
Is HBOT safe?
Is HBOT a replacement for my current care?
Have a question that isn’t here? Talk to our team →
“My health improved considerably with energy levels increasing and my vision improving. The results have been incredible.”
- Serena
Ready when you are
Find out whether HBOT could be a fit for you
Every person and every situation is different. The best place to start is a conversation about your symptoms, goals and whether a personalised HBOT programme may be appropriate for you.
Prefer to talk? Call 022 067 2277 or email info@cocoon.net.nz