Do you ever feel like you’re doing everything right: eating well, moving your body, and staying hydrated: yet you still wake up feeling like you’ve barely slept?
It’s a frustrating cycle. We know that sleep is the cornerstone of recovery, the time when our bodies repair tissue and our brains process the day’s events. But for many, that deep, restorative rest remains elusive, leaving them stuck in a loop of fatigue and brain fog.
At Flow Well, we’re always looking at the latest science to understand how we can help you find your rhythm again. A significant study published in early 2026 has shed new light on how hyperbaric oxygen therapy (HBOT) can support the brain in achieving better sleep quality, especially for those who have struggled for a long time.
The 2026 Research: A Deep Dive into Sleep Quality
The study, published in Frontiers in Neurology, took a close look at a large group of 395 participants. This wasn’t just a small pilot programme; it was a comprehensive retrospective study involving three distinct groups: healthy aging individuals, those managing Long-COVID, and individuals living with PTSD.
Researchers used the Pittsburgh Sleep Quality Index (PSQI): a gold-standard tool for measuring sleep: to track how a course of 60 HBOT sessions affected their rest. The results were remarkably consistent across all groups.
Every single group saw a statistically significant improvement in their total sleep scores. Whether it was the time taken to fall asleep (latency), the duration of sleep, or fewer disturbances during the night, the data showed a clear shift toward better rest.
Interestingly, the study found that those with the poorest sleep at the beginning of the trial saw the most dramatic gains. If your baseline is low, the potential for improvement appears to be even higher.
Why Does Oxygen Help the Brain 'Reset'?

You might wonder why breathing oxygen in a pressurised environment would have anything to do with how you sleep. The logic lies in how our brains manage energy and repair.
When you undergo hyperbaric oxygen therapy, your body is saturated with oxygen at levels far higher than what you can achieve at normal atmospheric pressure. This "super-oxygenation" does more than just boost your energy levels naturally; it provides the raw materials the brain needs to support its own healing processes.
Under pressure, oxygen dissolves into the blood plasma, reaching areas of the brain that might have reduced blood flow due to stress, aging, or inflammation. This support encourages the brain to regulate its sleep-wake cycles more effectively. It’s like giving your internal clock a gentle nudge back into its natural rhythm, helping you transition more smoothly into the deep stages of sleep where the real recovery happens.
Flow Well’s Approach: Finding the Sweet Spot
In the Frontiers in Neurology study, the researchers used a protocol of 2.0 ATA (Atmospheres Absolute) with 100% oxygen. This is a common setting in clinical hospital environments, often used for acute medical conditions.
At Flow Well, our approach is slightly different. We typically use a 1.5 ATA protocol with 93% oxygen. We consider this the "sweet spot" for general wellness and recovery. While 2.0 ATA is effective in a clinical setting, it can sometimes feel a bit more intense.
By opting for 1.5 ATA, we offer a more gentle and relaxing experience that still provides the profound benefits of oxygen saturation. You can lie back, breathe deeply, and let the pressure do the work in a calm, professional environment. This slightly lower pressure is often more comfortable for the ears and allows for a peaceful session that many of our clients find so relaxing they actually drift off to sleep during the treatment itself.
A Holistic Framework for Recovery

Better sleep doesn’t happen in a vacuum. It’s part of a larger picture of how your body handles waste, manages inflammation, and restores its energy reserves.
This is why we often combine the oxygen saturation of HBOT with the mechanical movement and compression from Vasotherapy. While the oxygen supports the brain and cellular repair, Vasotherapy boosts circulation and encourages the natural removal of waste products through the lymphatic system.
When you improve circulation and oxygen delivery simultaneously, you’re supporting your body from two different angles. It’s not about a quick fix; it’s about creating the right environment for your body to do what it does best: heal and recharge.
Is It Time to Restore Your Rhythm?

If you’ve been struggling with fatigue or finding it hard to get the quality rest you need, it’s worth exploring how oxygen therapy for recovery could fit into your routine.
We understand that everyone’s journey is different. What works for a professional athlete might be different from what helps someone managing the long-term effects of stress or a chronic condition. That’s why we focus on a "gentle-first" philosophy, ensuring that every session feels supportive rather than overwhelming.
Whether you're looking to boost energy levels naturally or simply want to find out more about the science behind our therapies, we’re here to help you navigate the options.
If you’re curious about whether Hyperbaric Oxygen Therapy or Vasotherapy is the right path for you, we invite you to book a consultation call. It’s a low-pressure way to discuss your goals and see how we can help you get back to feeling like yourself again.
Book a free consultation call here
Citation:
Doenyas-Barak, K., et al. (2026). "The Effect of Hyperbaric Oxygen Therapy on Sleep Quality Across Diverse Patient Populations." Frontiers in Neurology. DOI: 10.3389/fneur.2026.1690633.
Disclaimer: Flow Well provides non-invasive therapies intended for general wellness support. Our services are not intended to diagnose, treat, cure, or prevent any specific medical condition. We always recommend consulting with your GP or a healthcare professional before starting any new wellness programme.