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Sleep Guide

A comprehensive guide to understanding and improving your sleep, with insights from wearable sleep data.

v1.0 Updated 4 Aug 2026

Why Sleep Matters

Sleep is when your body recovers, repairs, and adapts. Poor sleep impairs training performance, recovery, nutrition adherence, and cognitive function. Prioritising sleep is one of the highest-impact health changes you can make.

Sleep Architecture

Sleep has stages: deep (physical recovery), light (transition), REM (mental recovery), and awake periods. Garmin tracks these and provides a sleep score. BodyFit uses this data to assess your recovery and adjust training. Aim for 7-9 hours with good architecture.

Sleep Hygiene

Key practices: consistent sleep and wake times, a cool dark room, no screens before bed, limiting caffeine after midday, regular exercise (but not right before bed), and managing stress. Small consistent changes compound into better sleep.

Using Sleep Data

Your Garmin sleep data feeds into BodyFit’s recovery readiness and AI coaching. Track your sleep score trends over time. If your sleep is consistently poor, your AI Coach will recommend gentler sessions and flag potential overtraining. See our Recovery Centre.

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