In this episode of Talking Sleep, host Dr. Seema Khosla welcomes Dr. Laura Donahue, an assistant professor of sleep medicine at Vanderbilt University with a background in internal medicine and a researcher in sustainable healthcare, to discuss the environmental impact of sleep medicine practice and practical strategies for reducing carbon footprint and medical waste.

Recent environmental challenges—heat waves exacerbating insomnia, wildfires affecting respiratory and sleep health—highlight how climate directly impacts patient wellbeing. But do sleep medicine clinicians have an obligation to reduce their own environmental footprint? Dr. Donahue explores this question, examining the waste generated by sleep testing, PAP therapy, and ongoing supplies.

The conversation begins with foundational concepts: How does climate change impact sleep health? What exactly constitutes medical waste, and how does it differ from carbon footprint? Dr. Donahue explains methods for calculating carbon footprint and how the US healthcare system compares globally. She introduces life cycle analysis—a comprehensive tool for understanding environmental impact across product lifecycles.

Sleep lab waste assessments receive detailed attention. Dr. Donahue walks through how to conduct a waste audit of sleep facilities and why examining both carbon footprint and waste matters, acknowledging that these metrics don't always move directionally. Her research on PAP device waste, conducted with Dr. Morgenthaler, revealed substantial environmental costs associated with standard OSA therapy—findings that prompted examination of alternatives.

Telemedicine emerges as a potential sustainability strategy. Dr. Donahue compares carbon footprints of virtual versus in-person sleep consultations, exploring how practice model choices affect environmental impact. However, the analysis doesn't focus solely on PAP therapy—hypoglossal nerve stimulators and other non-PAP treatment options receive consideration as alternatives with potentially different environmental profiles.

SHAPE, an organization dedicated to helping healthcare providers examine their carbon footprint and waste generation, receives discussion. Dr. Donahue explains SHAPE's mission and practical resources available to sleep medicine programs. She provides concrete guidance on reducing environmental impact: waste audits, supply chain evaluation, and transitioning to circular economy models where possible.

A particularly relevant discussion addresses plastic waste from CPAP devices and consumable supplies. Dr. Donahue explains how waste audits serve as the first step toward identifying reduction opportunities and discusses strategies for minimizing single-use plastics in sleep medicine practice.

The episode acknowledges that sustainability requires institutional commitment and individual awareness. Dr. Donahue emphasizes that small changes—from supply selection to practice model design—accumulate to meaningful environmental impact.

Whether you're interested in sustainable healthcare, concerned about medical waste, seeking to reduce your sleep practice's carbon footprint, or wanting to better understand climate impacts on sleep health, this episode provides practical guidance and evidence-based approaches.

Join us for this important conversation about environmental responsibility in sleep medicine practice.