About Us

SIDE SLEEP TECHNOLOGIES BV is a Dutch digital health startup using the latest wearable technology to train people to sleep on their side to improve their sleep quality and reduce health problems during the night. 

Our mission is to help everyone sleep in their most healthy position throughout the night.

We believe that great sleep helps you to live fully and be the best version of yourself. For this reason, we created wearables that are research-based, affordable, easy to use, and non-invasive. 

Our first release, the Snooor Anti-Snoring wearable using the principles of positioning therapy combined with wearable technology, was developed to train positional (back) snorers to sleep on their side so they can breathe more freely and stop snoring!

Our second release is the LEFT Device which trains people suffering from acid reflux to sleep on their left side so the stomach is positioned below the esophagus and gravity works to keep acid in the stomach and the pain goes away.

Our team is made of leading sleep experts and technologists working together to help you sleep better.

SIDE SLEEP TECHNOLOGIES BV was founded in October 2018. 

the Team

Michiel allessie

Michiel Allessie


Boarded sleep dentist and serial entrepreneur. Last exit March 2018 Sleep.ai acquired by SleepscoreLabs. Michiel was VP of Snoring at SleepScore Labs (a joint venture with Resmed) before starting Side Sleep Technologies. In depth knowledge about digital health and startups. Participated in 2 digital health accelerators.

Idan velleman

Idan Velleman


Idan has nearly 20 years of international business development and sales experience in the hospitality tech industry. He has held management positions at Booking.com, PriceMatch (acquired by Booking), TravelClick and Radisson. Idan is a graduate of Hotelschool The Hague with a BA in Hospitality Administration and Management (NL).

Mykola sharhan

Mykola Sharhan


Mykola has over 6 years in software development with focus in algorithms development, ML and optimization for embedded devices. From 2016 to 2018 he

was responsible for developing motion engine in Ring.com (acquired by Amazon).

Mykola got M.S. degree in Computer Science (NTUU “Kyiv Polytechnic Institute”, Faculty of Biomedical Engineering). 

Arjan bredenoord

Prof. Arjan Brdenoord

Medical Advisor

Prof. Bredenoord is active for over 15 years in the field of neurogastroenterology and reflux disease and eosinophilic esophagitis in the Netherlands. He is an author of over 200 articles, books, chapters and guidelines in his field in Asia and the USA. Prof. Bredenoord is president of the European Society for Eosinophilic Esophagitis and chair of the Dutch Neurogastroenterology and Motility Society and editor of the journal Neurogastroenterologie and Motility.