diff --git a/pyproject.toml b/pyproject.toml
index dee99af..4f181a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "huckleberry-api"
-version = "0.4.2"
+version = "0.4.3"
 description = "Python API client for Huckleberry baby tracking app using Firebase Firestore"
 readme = { file = "README.md", content-type = "text/markdown" }
 license = { text = "MIT" }
diff --git a/src/huckleberry_api/firebase_types.py b/src/huckleberry_api/firebase_types.py
index 2ab09b2..6a666f9 100644
--- a/src/huckleberry_api/firebase_types.py
+++ b/src/huckleberry_api/firebase_types.py
@@ -8,7 +8,7 @@
 
 from typing import Literal, TypeAlias
 
-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import BaseModel, ConfigDict, Field, field_validator
 
 Number: TypeAlias = int | float
 JsonScalar: TypeAlias = str | int | float | bool | None
@@ -161,10 +161,25 @@ class FirebaseChildSweetspot(StrictModel):
     """Known payload for childs/{child_id}.sweetspot."""
 
     selectedNapDay: Number | None = None
-    sweetSpotTimes: dict[str, Number] | None = None
+    sweetSpotTimes: list[Number | None] | None = None
     sweetspotStrings: FirebaseChildSweetspotStrings | None = None
     uuid: str | None = None
 
+    @field_validator("sweetSpotTimes", mode="before")
+    @classmethod
+    def _normalize_sweetspot_times(cls, value: object) -> object:
+        """Firebase sends this as either a dict or a list; normalize to list."""
+        if isinstance(value, dict):
+            if not value:
+                return None
+            # Determine max index to size the list
+            max_idx = max(int(k) for k in value.keys())
+            result: list[Number | None] = [None] * (max_idx + 1)
+            for k, v in value.items():
+                result[int(k)] = v
+            return result
+        return value
+
 
 class FirebaseChildDocument(StrictModel):
     """Known fields from childs/{child_id}."""
diff --git a/tests/test_firebase_types.py b/tests/test_firebase_types.py
index 43a600f..278abaa 100644
--- a/tests/test_firebase_types.py
+++ b/tests/test_firebase_types.py
@@ -7,6 +7,8 @@
     FirebaseActivityPrefs,
     FirebaseActivityTimerData,
     FirebaseActivityTimerEntryData,
+    FirebaseChildDocument,
+    FirebaseChildSweetspot,
     FirebaseDiaperDocumentData,
     FirebaseFeedDocumentData,
     FirebaseGrowthData,
@@ -451,3 +453,41 @@ def test_activity_multi_container_model() -> None:
     assert len(model.data) == 2
     assert model.data["interval1"].mode == "bath"
     assert model.data["interval2"].mode == "storyTime"
+
+
+def test_child_document_accepts_list_shaped_sweetspot_times() -> None:
+    """sweetSpotTimes is a list (not dict) with None placeholders from Firebase."""
+    model = FirebaseChildDocument.model_validate(
+        {
+            "childsName": "Test Child",
+            "birthdate": "2023-01-01",
+            "gender": "M",
+            "sweetspot": {
+                "selectedNapDay": 3,
+                "sweetSpotTimes": [None, None, None, 1777506600.0, 1777504800.0],
+            },
+        }
+    )
+
+    assert model.sweetspot is not None
+    assert model.sweetspot.sweetSpotTimes == [None, None, None, 1777506600.0, 1777504800.0]
+    assert model.sweetspot.selectedNapDay == 3
+
+
+def test_child_document_normalizes_dict_shaped_sweetspot_times() -> None:
+    """sweetSpotTimes may also arrive as a sparse dict from Firebase."""
+    model = FirebaseChildDocument.model_validate(
+        {
+            "childsName": "Test Child",
+            "birthdate": "2023-01-01",
+            "gender": "M",
+            "sweetspot": {
+                "selectedNapDay": 4,
+                "sweetSpotTimes": {"3": 1777567800.0, "4": 1777566600.0},
+            },
+        }
+    )
+
+    assert model.sweetspot is not None
+    assert model.sweetspot.sweetSpotTimes == [None, None, None, 1777567800.0, 1777566600.0]
+    assert model.sweetspot.selectedNapDay == 4