I always talk about opening your windows to minimize indoor air pollution and get cleaner oxygen into your home. But did you know it’s also a great sleep hack?
It’s even a part of my 15-Minute Powerful Morning Routine. Because overnight, CO2 levels rise, humidity increases, and airborne particles settle—making the air in your home, and especially your bedroom, less than fresh. It’s actually a little gross when you think about it.
It’s called Lüften, and Europeans have been practicing it for centuries.
Lüften Improves Your Health:
• Boosts oxygen levels – More oxygen means better concentration, energy, and overall brain function.
• Reduces airborne pollutants – Indoor air can be up to five times more polluted than outdoor air due to dust, mold spores, and VOCs (volatile organic compounds). Lüften helps clear them out.
• Cuts down on allergens – Opening your windows allows pet dander, pollen, and other irritants to disperse rather than accumulate.
• Regulates humidity – Keeping moisture levels in check prevents mold growth and helps ease respiratory issues.
• Improves sleep quality – Studies show that cooler, fresher air promotes deeper sleep and reduces nighttime restlessness.
How to Lüften:
1. Morning Refresh: Open your bedroom window for 5-10 minutes to replace stale, CO2-filled air with oxygen-rich freshness.
2. Daytime Boost: If you’re home, crack open a few windows to maintain airflow and keep your space feeling light and clean.
3. Pre-Bed Cool Down: Before sleeping, open your windows briefly—cooler air helps lower your core temperature for better sleep.
Try it.
Get more of my best sleep hacks here.
Before you go, there is A LOT happening on my Instagram this month on the topics of Hydration, Nutrition, Exercise & Stretching. Take a look and leave me a comment.
Kristen Coffield
I am the Founder of Active Grandparenting™ & The Culinary Cure™ and Author of Active Grandparenting. I am a passionate advocate for food as medicine, life navigator and culinary coach. This is my space for sharing what excites, inspires and motivates me to live my best life. It began as a recipe blog for nourishing, simple, weekday meals and has become something much bigger… a guide to resilient wellness. I am excited to share my knowledge of how daily habits can cumulatively help you to live like you mean it and age like you want to.
