[Home](./index.md) > [bitburner](./bitburner.md) > [NS](./bitburner.ns.md) > [asleep](./bitburner.ns.asleep.md) ## NS.asleep() method Suspends the script for n milliseconds. Doesn't block with concurrent calls. Signature: ```typescript asleep(millis: number): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | millis | number | Number of milliseconds to sleep. | Returns: Promise<void> ## Remarks RAM cost: 0 GB