Dr. Michael Feld
Sleep Expert & Medical Advisor Seven Sundays
Sleep is the essence of our performance
Perfected by nature over millennia, it’s the ultimate regeneration program for body and mind. Despite decades of sleep research, it remains one of humanity’s greatest mysteries – a deep, complex, biological masterpiece that no technology can replicate.
Yet Bad sleep became acceptable – with dire consequences
Industrial and technical revolutions disrupted our natural sleep cycles. No longer did the sun and our internal rhythms govern our rest – instead, external factors rule our nights. Factory work introduced artificial light and shift patterns. The agile revolution brought constant stimulation, always-on notifications, and an “always-on” mentality our brains weren’t designed to handle. This explains the surge in mental health issues worldwide.
The mattress industry exploited this crisis
Instead of solving the problem, a multi-billion dollar industry promised "one mattress fits all" – mass-produced products with massive margins. The result: over 30 million discarded mattresses annually in Europe, and even more people with bad sleep. Can a 20-year-old athlete really need the same support as a 75-year-old with arthritis?
The solution: reclaim your rest through personalization
Just as your body is unique, no single sleep surface can serve everyone. Personalized, modular sleep systems finally return control to you – giving you the key to unlock restorative rest tailored to your body. Return to sleep's original purpose: essential regeneration enabling your peak performance.
We spend a third of our lives sleeping – not as downtime, but as essential regeneration. While science is still scratching the surface of what truly happens during sleep, one thing is already clear: it's the decisive factor for our health and performance.
Sleep 18% better with Seven Sundays
What does 13% better sleep mean? Faster sleep onset, deeper rest, better recovery. Proven in a study with 43 elite Red Bull athletes using scientific aura ring measurements.
Read a study
Recovery experts at your side
Our scientific advisory board
Seven Sundays has partnered with renowned medical experts who are leaders in their respective fields. They support Seven Sundays in developing the modular sleep system based on precise, cutting-edge science in health & longevity.
“True sleep optimization requires individualization at the highest level. At Seven Sundays, I contribute my expertise so the modular system holistically promotes optimal sleep. Here, sleep medicine becomes applicable innovation.”
Dr. Michael Feld
Sleep Expert and Medical Advisor at Seven Sundays
“Our back carries us through life – and deserves special care at night. At Seven Sundays, I bring my experience to ergonomically optimize every component – like the Stretch Layer. What drives me: that moment when you lie down and feel – here, my back can finally let go.”
Prof. Dr. Dietrich Grönemeyer
Back expert and medical advisor Seven Sundays
Official supplier of sleep systems 2025/2026
Giro d’Italia / Tour de France / Vuelta a Espana
PRO SPORT TEAMS TRUSTING Seven Sundays
Family business with over 40 years of experience and research
Premium Material
Quality Every sleep system is only as good as its components. As an independent manufacturer, we always choose the best: cold foams with the world’s highest density from Europe’s leading manufacturers.
Swiss Design
We emerged from a Swiss foam manufacturer that has worked with Europe’s best interior brands for decades. Our innovative core design is found in premium furniture from Vitra, Walter Knoll and Rolf Benz.
Revolutionarily Sustainable
While 30 million mattresses are burned annually in Europe, Seven Sundays redefines sustainability: completely unglued, repairable, long-lived, every component exchangeable and recyclable.
German Brand Award Winner
2024
Europe's fastest growing companies
2023
Innovation Prize Ergonomics Winner
2022
German Design Award
2019
REAL SLEEP, REAL STORIES
“When you spend a lot of time on stage or in front of the camera and have to perform at your best every day, quality sleep becomes essential. Seven Sundays is exactly the solution I've always been looking for.”
REAL SLEEP, REAL STORIES
“When you spend a lot of time on stage or in front of the camera and have to perform at your best every day, quality sleep becomes essential. Seven Sundays is exactly the solution I've always been looking for.”
Alexander Mazza
TV Host & Presenter
“I've been curating what's good for over 20 years. With sleep, I was surprised how much potential I was leaving on the table – until I discovered Seven Sundays.”
“I've been curating what's good for over 20 years. With sleep, I was surprised how much potential I was leaving on the table – until I discovered Seven Sundays.”
Anita Tillmann
Founder PREMIUM Group
