Start with what was recorded
Time in bed and time asleep are different measurements. Time in bed can include periods when you were awake; time asleep excludes them. Efficiency expresses their relationship when both are available. Connefi brings supported connected sleep records into view. It does not independently record your sleep, and the detail available depends on your source and permissions.
Stages add context
Sleep moves through non-REM and REM phases. Deep sleep is a non-REM stage, while REM periods generally become longer later in the night. A wearable’s stage labels are estimates derived from indirect signals. They are useful to read alongside duration, timing and how you feel; they should not be treated as a laboratory sleep study.
A score has its own assumptions
Connefi’s source calculates its sleep score from available recorded duration, efficiency and stage shares. Awakening counts, regularity and paired heart-rate information can contribute when usable evidence exists. Missing factors are omitted and available weights are normalized. That makes the result specific to Connefi’s method; an identical number in another app may mean something different.
Give patterns room to emerge
Use consistent sources and look across comparable nights before interpreting a change. A gap in a record is missing evidence, not proof that no sleep occurred. Unusual values deserve a source check: dates, episode boundaries and overlapping records can affect the picture. A single night should not define your whole routine.
Know what the record cannot resolve
Consumer sleep information cannot establish or rule out a sleep disorder. If your sleep is persistently concerning, discuss the experience and relevant records with a healthcare professional. A chart can help frame the conversation without replacing an evaluation.
Research & sources
Research provides context; it does not validate Connefi’s exact scores or establish individual outcomes.