diff --git a/homeassistant/components/eight_sleep/sensor.py b/homeassistant/components/eight_sleep/sensor.py
index b184cd2496f..b07865d8591 100644
--- a/homeassistant/components/eight_sleep/sensor.py
+++ b/homeassistant/components/eight_sleep/sensor.py
@@ -146,7 +146,7 @@ def _get_breakdown_percent(
     """Get a breakdown percent."""
     try:
         return round((attr["breakdown"][key] / denominator) * 100, 2)
-    except ZeroDivisionError:
+    except (ZeroDivisionError, KeyError):
         return 0