100hr Yin Yoga Teacher Training

Yin Yoga is so much more than asana — it's also a platform for growth and transformation that will reignite the spark in your practice and teaching.

Sati Yoga's 100hr Yin Yoga Teacher Training will challenge you to re-examine old paradigms and break the rules. At the same time, you will learn a fresh approach to teaching highly personalized classes that will make you a more effective and responsive teacher.

Each course is high-touch. You'll get lots of personalized support and access to Jennifer during the program. Class sizes are limited.

2022 Core Program

The 100hr certification is comprised of the following two courses to be completed in the same calendar year.

Level 1: Yin Yoga Asana & Biomechanics
Apr 22-24, May 13-15, June 3-5, 2022

Learn the essential elements of practicing and teaching Yin Yoga asana through the lens of skeletal variation, biomechanics, and understanding sensation.

Learning objectives include:

  • history & principles of Yin Yoga
  • posture labs
  • safety & personalization
  • functional anatom
  • fascia anatomy & physiology
  • interpreting sensation
  • principles of teaching Yin Yoga

Check out the full course description including exact dates/times, expectations, and requirements.

Level 2: Yin Yoga & Taoism
Sep 9-11, Sep 30 - Oct 2, Oct 21 - 23, 2022

Learn how to use the insights and wisdom of Taoism and the Chinese Meridian System to assess your current physical, energetic, emotional, and mental wellbeing and design Yin Yoga practices that address your unique needs. Teachers will also learn how to apply these theories to design transformational and personalized Yin Yoga classes.

Learning objectives include:

  • history & principles of Taoism
  • Yin & Yang metaphysics
  • the Three Treasures: Jing, Qi, & Shen
  • Chinese meridian theory & practical applications
  • Qi cultivation
  • self-assessment and personalizing your home practice
  • creating Yin Yoga class plans that harmonize the energy body
  • five element theory & application

Check out the full course description including exact dates/times, expectations, and requirements.


"I truly think this certification program was one of the best I have ever taken. The care and attention that Jen put into developing a comprehensive, informative, organized program was evident. Every activity was well thought out and built upon the knowledge we were gaining from our readings and lectures, to culminate in a great understanding of the foundation, principles, and practice of Yin. The program was the perfect blend of lecture, readings, hands-on demonstrations, group practice, and leading others in practice. As a hatha yoga teacher, I feel like Jen's training has made me a better yoga teacher beyond Yin. Thanks for all you do, Jen!"

~ Jill S.


In addition to what's included with each course (printed manuals, office hours, classes and more), participants in the 100hr cohort will receive the following bonuses:

  • 100hr certificate
  • 2 additional live workshops (topics determined by the group)
  • 1hr coaching session
  • access to the Cultivating Mindful Awareness workshop
  • optional peer groups
  • support from Jennifer throughout the duration of the program in our virtual community
  • pop-up office hours as requested

Your Instructor

Jennifer O'Sullivan
Jennifer O'Sullivan

Jennifer O'Sullivan has been teaching yoga and meditation in the Washington, DC area for over 18 years after completing her first training in 2004. She has studied with exemplary yoga teachers from a number of disciplines but is most influenced by Don and Amba Stapleton of Nosara Yoga Institute and Sarah Powers. Jennifer is one of only 22 teachers to be endorsed by Sarah Powers to teach Insight Yoga, a heart-centered approach that weaves together yin and yang Yoga, Taoism, Buddhism and spiritual psychology.

Jennifer has completed nearly 1000 hours of Yin Yoga, biomechanics, and fascia physiology training and education with some of the most renowned teachers including Sarah Powers, Paul Grilley, Biff Mithoefer, Tom Meyers, and Jules Mitchell.

She is also greatly inspired by the mindfulness teachings of Thich Nhat Hanh and Bhante Gunaratana with whom she has sat several retreats. Jennifer received the Five Mindfulness Trainings (precepts) and her spiritual name from Thich Nhat Hanh. She continues her Buddhist studies through various centers across the US.

With more than a decade of experience offering innovative in-person and online yoga programs, Jennifer sees herself a force-multiplier, educating yoga teachers around the world to share depth practices that truly transform lives.


"Jen's teaching is passionate, direct and highly educational. Her loving kindness is only surpassed by her thorough knowledge of physical, energetic and mindfulness practices. This training is totally worth the time and money. I am walking away with a lot of useful information for both my personal practice and teaching practice."

~ Layne C.


Space is limited to ensure a personalized experience for all who attend. Register early to secure your spot. To allow time to mail printed manuals, registration for the 100hr program closes two weeks before the first Level 1 program session on April 10.

Sliding Scale Pricing: Recognizing that the cost of accessing yoga trainings was always inaccessible to many folks and that the global pandemic continues to diminish many teachers' livelihood, I’m now offering tiered pricing to help create better access to those with financial hardships.

There are now three options. True Price reflects the actual cost of delivering the program. Supported is for those who face financial constraints. More spots become available as enrollments grow. Pay-It-Forward is for anyone who'd like to help me offer more discounted and scholarship spots in this and future programs.

If you don't see the Supported option available, it means that all the spots have been taken. However, more spots may open up. Get in touch to be notified if/when more spots are available.

For more information on sliding scale pricing and how to know where you land on the scale, please refer to Alexis J. Cunningfolk to whom I owe a debt of gratitude for their nuanced perspective and sample language.

Pay In Full: To register in full, click the "Enroll" button to sign up and pay online using all major credit cards plus Pay Pal and Apple Pay.

Payment Plan: You can secure your spot in the course by putting down a non-refundable deposit of 30% based on any of the price tiers. Payment must be paid in full two weeks before the course starts. Get in touch to discuss this option. I have to send you to a special link to start a payment plan.

BIPOC Scholarships: There are a limited number of partial scholarships (70% tuition reduction) available to BIPOC (black, indigenous, people of color) teachers. More spots become available as enrollments grow. There is no longer an application process to access this, but Scholarship recipients will need to pay their portion in full to secure a spot on the program. Choose BIPOC Scholarship when registering to receive the reduction. If you don't see this option, it means that all the spots have been taken. However, more spots may open up. Get in touch to be notified if/when more spots are available.

Persons in the UK and EU may be subject to VAT which will appear during the checkout process. Persons residing in some US states will be charged sales tax per state legislation.

Refunds are offered according to the following schedule:
- No Refunds after April 10, 2022
- March 26 - April 9, 30% refund
- March 11 - March 25, 50% refund
- Before March 11, 75% refund

Anyone on a payment plan or scholarship forfeits the deposit if they cancel. All refunds are minus transaction fees.

This course is closed for enrollment.

Frequently Asked Questions

When does the course start and finish?
The 100hr program starts with the Level 1 Training on April 22 and will finish after the second bonus workshop in November. Certificates will be awarded once the final homework from the Level 2 training is completed after the final program session.
How long do I have access to the course materials?
Some lectures in the Level 1 & 2 trainings will be recorded for your reference, but the expectation is that you will attend program sessions live. You'll have lifetime access to recordings and bonus materials. If I close down his site, you'll have a chance to download the materials to keep.
What if I can't attained program sessions?
The requirements for Level 1 and 2 are slightly different. You may only miss 10 hours of level 1. Level 2 will be recorded. You may be required to submit additional homework to demonstrate that you've watched recordings of missed material. Each course has optional office hours where you can get questions answered if you missed live calls.
Do I have to be a yoga teacher to join this program?
No, you don't need to be a teacher to attend this program and get a lot out of it. Non-students find the program to be very enriching for their personal exploration of yoga. However, you will not be qualified to teach Yin or any other type of yoga after this program. Foundational 200hr trainings cover a lot of material that will not be covered in this program. Should you decide to do a 200hr level 1 teacher training program in the future, you could certainly teach Yin Yoga afterwards.
Does this program qualify for Yoga Alliance CEUs?
Yes. Upon full and successful completion of the program, you'll receive a PDF certificate via email which you can submit to Yoga Alliance for proof of credit. Through the end of 2023, Yoga Alliance is allowing for virtual programs to count for their full amount.
Can I apply this program towards my yoga training?
The Level 1 course qualifies for the Yin Anatomy requirement for Sarah Powers' Insight Yoga Institute. Other than that, If you are interested in getting credit towards a 200hr or 300hr training program, you'll need to talk to the administrator of your school.
Do I have to complete both courses in the same year?
Yes. Since the pandemic started, we yoga teachers have become shape-shifters, adapting in real time to a rapidly changing environment. While it's my wish and intention to offer this same program in 2023, I cannot make any guarantees. Please do not sign up for the 100hr certificate expecting to attend the courses in 2023 or beyond. If you aren't sure about availability, you can sign up for each course separately when your plans solidify. Click on the links above to sign up for one course at a time.
Do I need special software to access the course?
Our main tool will be Zoom, which is available on all major platforms and mobile devices. All materials and the virtual community are accessible via any web browser. Please make sure that you have an adequate internet connection for video conferencing. You are expected to be on camera during program sessions.
What are my payment options?
You can pay in full right away using Visa, MasterCard, American Express, Pay Pal, and Apple Pay. All transactions are encrypted and secure. Payment plans are available along with a limited number of scholarships for people who share yoga with underserved communities. Get in touch if you are interested in either of these options: https://www.sati.yoga/contact.html
What is your refund policy?
Refunds are offered according to the following schedule: - No Refunds after April 10, 2022 - March 26 - April 9, 30% refund - March 11 - March 25, 50% refund - Before March 11, 75% refund Anyone on a payment plan or scholarship forfeits the deposit if they cancel. All refunds are minus transaction fees.
Do I qualify for a payment plan?
There are no special qualifications to join using a payment plan. You will need to put down an non-refundable down payment and make sure you're paid in full two weeks before the course starts. Get in touch if you're interested this option: https://www.sati.yoga/contact.html
What are the requirements for obtaining a scholarship?
A limited number of partial scholarships are available to BIPOC teachers. If this describes you, there are no other requirements to receive the scholarship. Choose "BIPOC Partial Scholarship" above to register. If you don't see the option, it means that the allotted spots have been taken. However, more spots may open up as enrollment grows. If you want to be notified if/when more spots are available, head to this page and let me know: https://www.sati.yoga/contact.html