---
url: /flow/guide/scripting-reference/functions/program-control/sleep.md
---

# Sleep

## Declaration

`procedure Sleep(Milliseconds: cardinal);`

### Example

```pascal
procedure OnMapEvent(var Value:Variant);
begin
  Sleep(5000); //pauses program execution for 5,000 milliseconds (i.e. 5 seconds)
end;
```

## Description

Pauses program execution for the specified number of milliseconds. The "cardinal" type is an unsigned integer. Note: Giving the procedure a negative value for Milliseconds may cause it to "sleep" indefinitely.