## `sleep`

### Signature

```solidity
function sleep(uint256 milliseconds) external;
```

### Description

Sleeps for a given amount of milliseconds.

### Parameters

| Parameter      | Type      | Description                      |
|----------------|-----------|----------------------------------|
| `milliseconds` | `uint256` | Duration to sleep in milliseconds |

### Examples

```solidity [test/Sleep.t.sol]
vm.sleep(10_000); // Halts execution for 10 seconds
```

### Related Cheatcodes

* [`unixTime`](/reference/cheatcodes/unix-time) - Returns the current unix timestamp in milliseconds