Interpreting Your Sleep Data: What Actually Matters vs What to Ignore
Learn what sleep tracker metrics actually matter and which ones to ignore. Focus on trends over single nights for better sleep insights.
13 min read
Category
Tracking
Sleep trackers, sleep diaries, and how to measure what you're fixing
How Sleep Trackers Actually Work: The Technology Explained
Sleep trackers use accelerometers, PPG sensors, and algorithms to infer sleep stages. Here's what's actually happening on your wrist and why it's not like medical testing.
16 min read