diff --git a/homeassistant/components/media_player/sonos.py b/homeassistant/components/media_player/sonos.py
index 03be42d07ff..a5ef91ecc87 100644
--- a/homeassistant/components/media_player/sonos.py
+++ b/homeassistant/components/media_player/sonos.py
@@ -322,6 +322,7 @@ class SonosDevice(MediaPlayerDevice):
         self._media_title = None
         self._media_radio_show = None
         self._media_next_title = None
+        self._available = True
         self._support_previous_track = False
         self._support_next_track = False
         self._support_play = False
@@ -386,6 +387,11 @@ class SonosDevice(MediaPlayerDevice):
         """Return coordinator of this player."""
         return self._coordinator
 
+    @property
+    def available(self) -> bool:
+        """Return True if entity is available."""
+        return self._available
+
     def _is_available(self):
         try:
             sock = socket.create_connection(
@@ -416,11 +422,11 @@ class SonosDevice(MediaPlayerDevice):
                 self._player.get_sonos_favorites()['favorites']
 
         if self._last_avtransport_event:
-            is_available = True
+            self._available = True
         else:
-            is_available = self._is_available()
+            self._available = self._is_available()
 
-        if not is_available:
+        if not self._available:
             self._player_volume = None
             self._player_volume_muted = None
             self._status = 'OFF'