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Sleep Tech Blog

Guides on CPAP therapy, sleep tracker accuracy, HRV interpretation, and how to get actionable insight from your sleep data.

CPAP Guide

APAP vs CPAP: What's the Difference and Which Do You Need?

CPAP delivers one fixed pressure all night. APAP adjusts breath by breath. Most new users do better on APAP — but there are cases where fixed pressure wins. Here is how to know which applies to you.

Sleep Science

How Accurate Are Consumer Sleep Trackers? (The Real Answer)

Consumer trackers estimate sleep stages from heart rate and movement. Clinical studies use brainwaves. Here is what the published validation research actually shows about Oura, Garmin, and Fitbit accuracy.

HRV Guide

HRV Explained: What Your Number Means and Why It Changes

HRV is not a score — it is a window into your autonomic nervous system. What counts as good varies wildly by age and fitness. Here is how to interpret your baseline instead of comparing to strangers online.

More guides coming soon. Check back for deep dives on CPAP mask fitting, smart alarm research, and subscription cost comparisons across all major platforms.