[Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [sleep](./bitburner.ns.sleep.md) ## NS.sleep() method Suspends the script for n milliseconds. Signature: ```typescript sleep(millis: number): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | millis | number | Number of milliseconds to sleep. | Returns: Promise<void> ## Remarks RAM cost: 0 GB