---
title: kIOSystemStateSleepDescriptionHibernateStateKey
framework: IOKit
role: symbol
role_heading: Global Variable
platforms: [iOS 16.0+, iPadOS 16.0+, Mac Catalyst 15.0+, macOS 12.0+, visionOS 1.0+]
path: iokit/kiosystemstatesleepdescriptionhibernatestatekey
---

# kIOSystemStateSleepDescriptionHibernateStateKey

## Declaration

```swift
var kIOSystemStateSleepDescriptionHibernateStateKey: String { get }
```