---
title: "Poor Sleep Under Stress: Causes, What Helps, and Lab Tests"
description: "Poor sleep under stress often comes from cortisol surges, a wired nervous system, or low iron. Targeted blood tests available—no referral needed."
canonical: "https://www.vitalsvault.com/symptoms/poor-sleep-under-stress"
last-updated: 2026-08-22
---

# Poor Sleep Under Stress: Causes, What Helps, and Lab Tests

> Poor sleep under stress often comes from cortisol surges, a wired nervous system, or low iron. Targeted blood tests available—no referral needed.

---

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