diff --git a/homeassistant/components/smarla/__init__.py b/homeassistant/components/smarla/__init__.py
index c55b1067735..2de3fcfa242 100644
--- a/homeassistant/components/smarla/__init__.py
+++ b/homeassistant/components/smarla/__init__.py
@@ -22,12 +22,13 @@ async def async_setup_entry(hass: HomeAssistant, entry: FederwiegeConfigEntry) -
 
     federwiege = Federwiege(hass.loop, connection)
     federwiege.register()
-    federwiege.connect()
 
     entry.runtime_data = federwiege
 
     await hass.config_entries.async_forward_entry_setups(entry, PLATFORMS)
 
+    federwiege.connect()
+
     return True
 
 
diff --git a/homeassistant/components/smarla/manifest.json b/homeassistant/components/smarla/manifest.json
index 5e572c78536..8f7786bdf72 100644
--- a/homeassistant/components/smarla/manifest.json
+++ b/homeassistant/components/smarla/manifest.json
@@ -8,5 +8,5 @@
   "iot_class": "cloud_push",
   "loggers": ["pysmarlaapi", "pysignalr"],
   "quality_scale": "bronze",
-  "requirements": ["pysmarlaapi==0.8.2"]
+  "requirements": ["pysmarlaapi==0.9.0"]
 }
diff --git a/homeassistant/components/smarla/number.py b/homeassistant/components/smarla/number.py
index d2421962b07..c1a236e4557 100644
--- a/homeassistant/components/smarla/number.py
+++ b/homeassistant/components/smarla/number.py
@@ -53,9 +53,10 @@ class SmarlaNumber(SmarlaBaseEntity, NumberEntity):
     _property: Property[int]
 
     @property
-    def native_value(self) -> float:
+    def native_value(self) -> float | None:
         """Return the entity value to represent the entity state."""
-        return self._property.get()
+        v = self._property.get()
+        return float(v) if v is not None else None
 
     def set_native_value(self, value: float) -> None:
         """Update to the smarla device."""
diff --git a/homeassistant/components/smarla/switch.py b/homeassistant/components/smarla/switch.py
index d68f3428a77..f9b56fdea7e 100644
--- a/homeassistant/components/smarla/switch.py
+++ b/homeassistant/components/smarla/switch.py
@@ -52,7 +52,7 @@ class SmarlaSwitch(SmarlaBaseEntity, SwitchEntity):
     _property: Property[bool]
 
     @property
-    def is_on(self) -> bool:
+    def is_on(self) -> bool | None:
         """Return the entity value to represent the entity state."""
         return self._property.get()
 
diff --git a/requirements_all.txt b/requirements_all.txt
index f21b455f0a1..44499fb9d33 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2338,7 +2338,7 @@ pysma==0.7.5
 pysmappee==0.2.29
 
 # homeassistant.components.smarla
-pysmarlaapi==0.8.2
+pysmarlaapi==0.9.0
 
 # homeassistant.components.smartthings
 pysmartthings==3.2.5
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 58983df2583..82238467816 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1938,7 +1938,7 @@ pysma==0.7.5
 pysmappee==0.2.29
 
 # homeassistant.components.smarla
-pysmarlaapi==0.8.2
+pysmarlaapi==0.9.0
 
 # homeassistant.components.smartthings
 pysmartthings==3.2.5
diff --git a/tests/components/smarla/snapshots/test_number.ambr b/tests/components/smarla/snapshots/test_number.ambr
index 3232795c277..50312e09920 100644
--- a/tests/components/smarla/snapshots/test_number.ambr
+++ b/tests/components/smarla/snapshots/test_number.ambr
@@ -53,6 +53,6 @@
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '1',
+    'state': '1.0',
   })
 # ---
diff --git a/tests/components/smarla/test_number.py b/tests/components/smarla/test_number.py
index 642b39f33fb..3589829e56c 100644
--- a/tests/components/smarla/test_number.py
+++ b/tests/components/smarla/test_number.py
@@ -93,11 +93,11 @@ async def test_number_state_update(
 
     entity_id = entity_info["entity_id"]
 
-    assert hass.states.get(entity_id).state == "1"
+    assert hass.states.get(entity_id).state == "1.0"
 
     mock_number_property.get.return_value = 100
 
     await update_property_listeners(mock_number_property)
     await hass.async_block_till_done()
 
-    assert hass.states.get(entity_id).state == "100"
+    assert hass.states.get(entity_id).state == "100.0"