---
title: sleepChanges
framework: healthkit
role: symbol
role_heading: Type Property
path: healthkit/hkcategorytypeidentifier/sleepchanges
---

# sleepChanges

A category type that records sleep changes as a symptom.

## Declaration

```swift
static let sleepChanges: HKCategoryTypeIdentifier
```

## Discussion

Discussion These samples use values from the HKCategoryValuePresence enumeration.

## See Also

### Sleep

- [nightSweats](healthkit/hkcategorytypeidentifier/nightsweats.md)