# sleepVelocity

> The linear velocity below which objects start going to sleep. (Default 0.14) range { 0, infinity }.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

> **Warning:**
>
> **Removed.** The sleepVelocity is no longer supported. Use sleepThreshold. Note that sleepThreshold is energy but not velocity.

```csharp
public float sleepVelocity { get; set; }
```

### Remarks

See the [Physics Overview](/engine/6000.0/manual/physics-section/physics-overview.md) in the manual for more information about Rigidbody sleeping.