---
title: "sleep(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterlowpower/sleep(completionhandler:)"
---

# sleep(completionHandler:)

## Declaration

```swift
func sleep(completionHandler: @escaping @Sendable ((any Error)?) -> Void)
```

```swift
func sleep() async throws
```