diff --git a/homeassistant/components/withings/sensor.py b/homeassistant/components/withings/sensor.py
index 96cb433deba..28a0fbd1492 100644
--- a/homeassistant/components/withings/sensor.py
+++ b/homeassistant/components/withings/sensor.py
@@ -425,6 +425,9 @@ SLEEP_SENSORS = [
         key="sleep_snoring",
         value_fn=lambda sleep_summary: sleep_summary.snoring,
         translation_key="snoring",
+        native_unit_of_measurement=UnitOfTime.SECONDS,
+        suggested_unit_of_measurement=UnitOfTime.MINUTES,
+        device_class=SensorDeviceClass.DURATION,
         state_class=SensorStateClass.MEASUREMENT,
         entity_registry_enabled_default=False,
     ),
diff --git a/tests/components/withings/snapshots/test_sensor.ambr b/tests/components/withings/snapshots/test_sensor.ambr
index 543cba05e21..ec9fc1ed3fc 100644
--- a/tests/components/withings/snapshots/test_sensor.ambr
+++ b/tests/components/withings/snapshots/test_sensor.ambr
@@ -3198,8 +3198,11 @@
     }),
     'name': None,
     'options': dict({
+      'sensor.private': dict({
+        'suggested_unit_of_measurement': <UnitOfTime.MINUTES: 'min'>,
+      }),
     }),
-    'original_device_class': None,
+    'original_device_class': <SensorDeviceClass.DURATION: 'duration'>,
     'original_icon': None,
     'original_name': 'Snoring',
     'platform': 'withings',
@@ -3207,21 +3210,23 @@
     'supported_features': 0,
     'translation_key': 'snoring',
     'unique_id': 'withings_12345_sleep_snoring',
-    'unit_of_measurement': None,
+    'unit_of_measurement': <UnitOfTime.MINUTES: 'min'>,
   })
 # ---
 # name: test_all_entities[sensor.henk_snoring-state]
   StateSnapshot({
     'attributes': ReadOnlyDict({
+      'device_class': 'duration',
       'friendly_name': 'henk Snoring',
       'state_class': <SensorStateClass.MEASUREMENT: 'measurement'>,
+      'unit_of_measurement': <UnitOfTime.MINUTES: 'min'>,
     }),
     'context': <ANY>,
     'entity_id': 'sensor.henk_snoring',
     'last_changed': <ANY>,
     'last_reported': <ANY>,
     'last_updated': <ANY>,
-    'state': '1080',
+    'state': '18.0',
   })
 # ---
 # name: test_all_entities[sensor.henk_snoring_episode_count-entry]