Apple Watch Sleep Score Ranges and the iOS 26.2 Change

Apple revised its sleep-score classifications with iOS 26.2 and watchOS 26.2. The original scale made a score of 90 “Excellent”; the current scale calls 81–95 “High” and reserves “Very High” for 96 or above. The calculation still emphasizes sleep duration, bedtime consistency, and interruptions, so a high score can disagree with how rested you feel.

Apple Watch displaying a nightly sleep score

Current Apple Watch sleep-score ranges

Current score	Current classification
0–40	Very Low
41–60	Low
61–80	OK
81–95	High
96–100	Very High

Apple’s original watchOS 26 ranges were narrower at the lower levels and labeled 90–100 “Excellent.” The 26.2 revision expanded the lower bands and removed that label:

Original watchOS 26 range	Original label	Current range	Current label
0–29	Very Low	0–40	Very Low
30–49	Low	41–60	Low
50–69	OK	61–80	OK
70–89	High	81–95	High
90–100	Excellent	96–100	Very High

The change makes the top classification harder to reach and avoids describing an algorithmic estimate as universally “excellent.” It does not turn the score into a diagnosis or guarantee that someone had restorative sleep.

How Apple calculates the score

Apple assigns up to 100 points across three components:

Sleep duration: 50 points. How long the watch estimates that you slept.
Bedtime consistency: 30 points. How closely sleep timing follows your recent pattern.
Interruptions: 20 points. The amount and duration of estimated awake periods during sleep.

Apple sleep score breakdown for duration consistency and interruptions

Apple says the approach was informed by guidance from the American Academy of Sleep Medicine, National Sleep Foundation, and World Sleep Society, and tested using more than five million nights from the Apple Heart and Movement Study. That describes development of the scoring method; it does not mean every nightly score precisely measures an individual’s health or next-day alertness.

Why a high score can still feel wrong

The score does not directly grade every factor that affects how a person feels. It does not include stress, illness, medication, alcohol, pain, sleep disorders, environmental disturbance, or subjective restfulness. Heart rate, respiratory rate, wrist temperature, and some other overnight measurements are available elsewhere in Apple Health or Vitals, but Apple’s published sleep-score calculation is based on the three components above.

A person can therefore sleep for the expected duration, at a consistent time, with few detected awakenings and receive a high score while still feeling tired. Conversely, an unusual but restorative schedule can lose consistency points.

View the score and its components

On Apple Watch:

Open the Sleep app after waking.
Tap the information button to see the score and component breakdown.
Turn the Digital Crown to review stages, duration, and recent averages.

On iPhone, open Health, tap Search, and choose Sleep. The score normally appears after the watch finishes processing the night’s data.

Sleep history and score details in the iPhone Health app

Check overnight heart rate separately

To review heart rate in the Health app, open Search > Heart > Heart Rate and choose a time range. The Vitals section can show overnight heart rate alongside respiratory rate, wrist temperature, sleep duration, and other supported measurements after enough nights are recorded.

Look for changes from your own typical range rather than comparing one number with another person’s. A wearable can miss readings if it is loose, charging, or removed during the night.

Requirements

Apple introduced sleep score with watchOS 26. Apple states that it works on Apple Watch Series 6 or later, Apple Watch SE (2nd generation) or later, and all Apple Watch Ultra models, paired with an iPhone 11 or later running iOS 26. Keep both devices updated, enable Track Sleep with Apple Watch, and wear the watch with a comfortable fit.

Feature availability can vary by region and device. Apple’s current sleep-score guide is the authoritative source for the ranges and requirements.

How to use the score responsibly

Compare trends over several weeks, not a single night.
Review the component breakdown instead of focusing only on the total.
Note schedule changes, illness, travel, alcohol, medication, and watch fit that might explain a result.
Do not change medication or treatment because of a wearable score.
Seek medical advice for persistent fatigue, breathing concerns, insomnia, or other symptoms even when the score is high.

The 26.2 labels are more conservative, but the score remains a wellness estimate. Its best use is to reveal patterns and support better questions—not to overrule how you feel or replace clinical evaluation.