Safe and Sound Protocol 

As our brain/body connection becomes more organized, we better process the world around us and become more confident, happy and engaged.

The Safe and Sound Protocol

This is an intensive listening therapy which stimulates the nerves responsible for sending signals of safety to the brain.


These signals allow our defense systems to stand down.


We then naturally move into social engagement, the 'rest and digest' branch of the nervous system. 


It has been demonstrated to improve cognitive, language and social abilities.

In addition to acute, repetitive, complex and developmental trauma, the Safe and Sound Protocol has been proven to help the following difficulties and challenges:

  • Social and emotional difficulties

  • Attachment disorder

  • Auditory sensitivities

  • Auditory processing difficulties

  • Anxiety and trauma related challenges

  • Inattention

  • Stressors that impact social engagement

What is the Safe and Sound Protocol?

This is an evidence-based 'portal to the Social Engagement System' developed over 4 decades of peer-reviewed research by the founder of Polyvagal Theory, Dr Stephen Porges.

Who is it for?

People with the following experiences are likely to benefit from this treatment:

  • Social anxiety and general anxiety

  • Trauma history including PTSD and Complex PTSD
  • Difficulty connecting to others

  • Attachment challenges

  • Difficulty with communication

  • Hearing sensitivity, overwhelm to sound, aversion to sounds

  • Difficulty hearing people speak in noisy environments

  • Sensory hypersensitivity

  • Poor concentration

  • Little ability to self regulate

  • Motion sickness

How can it help with trauma recovery?

Trauma disrupts the autonomic nervous system and can result in it being stuck in over-drive, like having your foot wedged on the accelerator in a car when you want to slow down. Or it can be shut down making you withdraw, like trying to drive with the handbrake on.


Both of these types of chronic defense make life feel like a struggle, relationships often feel unsatisfying and hard work. This programme tells your system that the threat is over and it is now safe. When your system 'knows' you are safe you will naturally engage more in pro-social activities, play and learning.


It is not recommended to undertake this programme if you are in an unsafe situation or if your home enviroment is very stressful. 

What's involved

Assessment with a therapist. Completion of an intake form asking you about your hearing and other related experiences.

It involves listening to a minimum of 5 hours of filtered music which stimulates the vagus nerve, crucial for us to feel safe, relax, connect with others, learn, digest well and enjoy living.

It can be described as a 'neural exercise'. 

The programme is accessed via smart phone app. You will need your own set of over-ear headphones (we are not providing these during the Covid pandemic).

What is 'filtered music'?

The music is treated to remove various frequencies. It gradually exposes the auditory system to different sound frequencies throughout the programme at a pace the system can integrate and adjust to.

How can I access the Safe and Sound Protocol?

It must be delivered by a certified Safe and Sound Protocol practitioner, like me.

You must be currently in therapy, either with me or another therapist who is in support of you taking this programme alongside your therapy. It can help you get more out of your regular therapy as your nervous system adjusts to the new cues of safety.

Contact me to go on the waiting list for therapy.

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07944 856640


©2013 Trauma Therapy Manchester

Susi Wrenshaw is registered as a Yoga Therapist with the Complementary and Natural Healthcare Council. The CNHC is accredited by the Professional Standards Authority for Health and Social Care. The Professional Standards Authority for Health and Social Care (PSA) is the independent government-appointed body that oversees and scrutinises the work of the nine statutory medical, health and care regulators. These include the General Medical Council (GMC), the Nursing and Midwifery Council (NMC) and the Health and Care Professionals Council (HCPC). Since March 2012 the Professional Standards Authority has also been able to accredit registers of health and care occupations that are not regulated by law and CNHC has successfully completed this process.

“Both the Government and the Professional Standards Authority (PSA) recommend that when a patient or service user chooses to visit a health or care practitioner who is unregulated, only those on an accredited register are consulted”. (Jane Ellison MP, Parliamentary Under Secretary of State for Public Health, November 2015).


General Medical Council guidance to doctors confirms they can refer patients to practitioners on Accredited Registers, such as CNHC.

Information on this website is for information only and is no substitute for medical advice.

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