By Sabine Christelli – Holistic Sleep Scientist & Wellness Strategist Most people try to improve their sleep or productivity by adding more effort. More supplements. More hacks. More pressure. But one of the most powerful sleep and performance tools we have is actually effortless— understanding your chronotype. Your chronotype is your body’s natural timing preference:
Sleep as the Secret Engine of Corporate Performance In today’s high-velocity business world, sleep is often relegated to the “self-care” bucket or dismissed as a personal hobby. But the truth is: sleep is foundational to performance, resilience, innovation, and sustainable energy at work. When leaders and teams operate on sleep debt, the impacts
by Sabine Christelli | Holistic Sleep Scientist, Meditation & Breathwork Educator We live in a culture that celebrates burnout like a badge of honour. Pushing through exhaustion is often glorified — the late-night emails, the early-morning grind, the “I’ll rest when I’m dead” mindset. We chase productivity, performance, perfection… and somewhere along the way,
updated on 25 November 2025by sabinechristelli A reflection. The idea that humans are cognitively wired to meaningfully engage with only about 150 to 200 people comes from Dunbar’s Number, a concept proposed by British anthropologist Robin Dunbar. It suggests that due to the limitations of our neocortex, we can only maintain stable social relationships with around 150 people —
