Apple added two sleep‑related tweaks in iOS 26.4, reshaping the Health app’s view. A bedtime bar chart now lives in the Highlights pane of Sleep and Sleep Score screens, showing the past two weeks with average and last night’s bedtime. The change arrives as iOS 26.4 leans into finer health metrics, for iPhone users worldwide today.

iOS 26.4 also restored the Blood Oxygen metric to the Vitals tab, re‑adding it after a legal tussle with Masimo forced its removal. The Vitals screen now tracks five signals—heart rate, respiratory rate, wrist temperature, blood oxygen and sleep duration—giving a more complete picture of nightly health. This reintegration reinforces Apple’s drive to keep core data in one place.

Rumors suggest iOS 27 will bundle the long‑teased Health+ concepts into the app for free. Bloomberg cites Eddy Cue’s pivot toward free nutrition logging, AI coaching and expert videos, while Gurman reports Siri‑powered visual intelligence will read food labels and feed data into Health. Apple plans to unveil iOS 27 at WWDC on June 8. Users can expect smoother workflow nutrition data populates automatically, cutting manual entry.