Salli Pillow
Vessi Jalkanen — The Leading Expert In The Knowledge @ Sitting Health Influencing General Health
A revolutionary ergonomic pillow design addresses neck vessel and lymph node pressure to optimize blood circulation and promote deep sleep essential for brain detoxification, reducing headaches and risks of dementia. Proper sleep posture includes side and back positions, aided by supportive side pillows and adequately wide beds to facilitate movement and prevent pressure sores. Stomach sleeping is discouraged due to lymphatic blockage and neck strain. Optimizing sleep with natural fibers, darkness, and minimal clothing enhances deep sleep quality; frequent nighttime position changes indicate healthy circulation and muscle relaxation.
"Don't accept that closeness and sleeping in the same bed and room are the same thing. You can have closeness and care, yet sleep in different beds—because sleep is so important, you shouldn't compromise with that for anything."
Summary
- A new ergonomic pillow design avoids neck vessel and lymph node pressure, improving blood flow and brain detox during sleep. - Optimal sleep includes side and back positions; large beds (140 cm) with side pillows allow easy position changes and prevent circulation issues. - Sleeping alone is recommended for better rest quality, even if intimacy is maintained outside sleep hours. - Stomach sleeping is discouraged due to poor ergonomics, neck strain, and lymph node compression. - Frequent position changes (25-50 times per night) are healthy to avoid circulation stagnation; poor ergonomics can limit movement and cause discomfort.
Article
Revolutionary pillow design promises to reduce headaches and dementia risk
Entrepreneur Vessi Jalkanen unveils sleep innovation despite personal tragedy at HOLOLIFE Summit 2025
In a poignant moment at the HOLOLIFE Summit 2025 Europe in Tallinn, designer and preventive health expert Vessi Jalkanen presented a revolutionary pillow design, just days after a devastating fire destroyed his factory.
"Thursday morning, I was woken up to see when my factory and my company burned down. Seven thousand cubic meters of spaces—and everything just burned down," Jalkanen told the audience. "I thought I couldn't make it here. But then, along the day, we made the decision that we would come."
The science behind the Salli Pillow
The Salli Pillow, as Jalkanen introduced it, addresses a fundamental flaw in conventional pillow design—one that could have significant health implications. Traditional pillows, especially those marketed as "ergonomic," often apply pressure to crucial blood vessels and lymph nodes in the neck.
"We should not be pressing the neck vessels," Jalkanen explained. "Now I know we also should not be pressing the neck lymph nodes, which branch into the brain and clean it up during the night when we have deep sleep."
According to Jalkanen, these conventional "ergonomic" pillows that support the neck are "dangerous rubbish" that can potentially cause headaches in the short term and contribute to dementia in the long run by restricting blood flow to the brain.
Optimizing sleep positions for better health
The innovation extends beyond just the pillow itself to an entire sleep system. Jalkanen advocates for a combination of side and back sleeping positions, facilitated by a wider bed and supporting side pillows.
"Side sleeping together with back sleeping—so you have three sleeping positions—is the smart way to go," he said, demonstrating how the Salli Pillow system allows users to move fluidly between positions without the discomfort that often prevents movement during sleep.
A key component of the system is the recommendation for wider beds—140cm instead of the standard 80cm—to allow for natural movement during sleep. This, Jalkanen argued, prevents the circulation issues and pressure sores that can develop from remaining in one position for too long.
The physiological basis for the design
During his presentation, Jalkanen highlighted the critical physiological reasons behind his design philosophy.
"Twenty-five percent of all blood circulation from the heart goes to the head. Even if the head is only ten percent of the body weight, it requires twenty-five percent of the circulation. The brain is vital," he explained.
Perhaps most compelling was his explanation of the lymphatic system's role in brain health. The lymph nodes in the neck have vessels that extend into the brain, responsible for clearing out metabolic waste during deep sleep—a process that can be compromised by conventional pillows.
"If this process is restricted, memory illnesses develop quickly," Jalkanen warned, linking proper sleep ergonomics directly to cognitive health.
Rethinking sleep habits
Some of Jalkanen's recommendations challenged conventional wisdom about sleep. He discouraged stomach sleeping entirely, citing the compression of lymph nodes and inevitable neck strain. He also controversially suggested that couples might sleep better in separate beds.
"Me and my wife discovered a few years ago that we both sleep better in different rooms," he shared. "You can have hugging, kissing, sex, and all the closeness in the evening, but when you sleep—do it alone unless you have small children."
Contrary to what some sleep trackers might suggest, Jalkanen asserted that changing positions frequently during the night—25 to 50 times—is actually healthy. "Any tissue we put weight on statically loses circulation," he explained, noting that the body naturally shifts position to revive tissues with poor circulation.
A wider movement toward sleep optimization
The Salli Pillow presentation at the HOLOLIFE Summit reflects a growing interest in sleep optimization within the biohacker community and beyond. With his emphasis on natural fibers, darkness, minimal clothing, and proper ergonomics, Jalkanen positioned his innovation within a holistic approach to sleep health.
Despite the personal tragedy that nearly prevented his attendance, Jalkanen's passion for his work and the biohacker community was evident throughout his presentation.
"The biohacker community has become very important and dear to me," he concluded. "There are lots and lots of friends in the biohacking community who understand us, value us when we cooperate with them with the best of our hearts."
Part of HOLOLIFE Summit 2025 Tallinn