---
title: kIOSystemStateSleepDescriptionKey
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/kiosystemstatesleepdescriptionkey
---

# kIOSystemStateSleepDescriptionKey

## Declaration

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