Fragmented sleep is also metabolically harmful even when total duration is preserved: Stamatakis & Punjabi (Chest, 2010) showed a 20–25% drop in insulin sensitivity. Treating insomnia as a “superpower” ignores that it doubles depression risk (Baglioni et al., Journal of Affective Disorders, 2011), markedly raises hypertension risk (Vgontzas et al., Sleep, 2009), and involves chronically elevated cortisol. CBT‑I — not romanticising 2 AM waking — is the evidence‑based treatment recommended by major sleep and medical societies across 50+ RCTs.