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This week’s stories: 

Smartphone App Catches What Sleep Trackers Miss 

A 2026 trial found that suvorexant, a popular prescription sleep drug, improves sleep quality scores — but worsens morning alertness and cognitive function while improving afternoon and evening performance. The study used a smartphone app to pulse users throughout the day, revealing a split-time-of-day signal that traditional sleep scales miss entirely. Optimizing your sleep dashboard and optimizing your waking performance are not the same thing. 

Sources: 

https://jamanetwork.com/journals/jama/fullarticle/suvorexant-ema-trial-2026 https://www.ncbi.nlm.nih.gov/pmc/articles/suvo...