diff --git a/homeassistant/helpers/selector.py b/homeassistant/helpers/selector.py
index e529cac096c..93f771d5bd6 100644
--- a/homeassistant/helpers/selector.py
+++ b/homeassistant/helpers/selector.py
@@ -207,8 +207,11 @@ class NumberSelector(Selector):
         has_min_max_if_slider,
     )
 
-    def __call__(self, data: Any) -> float:
+    def __call__(self, data: Any) -> float | None:
         """Validate the passed selection."""
+        if data is None:
+            return data
+
         value: float = vol.Coerce(float)(data)
 
         if "min" in self.config and value < self.config["min"]:
diff --git a/tests/helpers/test_selector.py b/tests/helpers/test_selector.py
index 88820de9eef..fdd2e0cf112 100644
--- a/tests/helpers/test_selector.py
+++ b/tests/helpers/test_selector.py
@@ -208,7 +208,8 @@ def test_area_selector_schema(schema, valid_selections, invalid_selections):
             (),
         ),
         ({"min": 10, "max": 1000, "mode": "slider", "step": 0.5}, (), ()),
-        ({"mode": "box"}, (10,), ()),
+        ({"mode": "box"}, (10, None), ("cat")),
+        ({"mode": "slider", "min": -100, "max": 100}, (10, None), ("cat")),
     ),
 )
 def test_number_selector_schema(schema, valid_selections, invalid_selections):