diff --git a/apps/global/heating.yaml b/apps/global/heating.yaml
index 3ddeff0..f193b1e 100644
--- a/apps/global/heating.yaml
+++ b/apps/global/heating.yaml
@@ -99,7 +99,7 @@ bedroom_heatpump:
     room_temperature: sensor.bedroom_temperature
     room_occupancy: binary_sensor.bedroom_occupancy
     target_temperature: sensor.target_temperature_heatpump
-    cant_open_window: binary_sensor.is_bedroom_sleeping
+    cant_open_window: binary_sensor.bedroom_cant_open_window
     sleeping_in_the_room: binary_sensor.is_bedroom_sleeping
     quick_resume: binary_sensor.bedroom_heatpump_quick_resume
     occupied_tonight: input_boolean.bedroom_occupied_tonight
@@ -107,6 +107,7 @@ bedroom_heatpump:
 
   virtual_sensors:
     sensors:
+      binary_sensor.bedroom_cant_open_window: binary_sensor.is_bedroom_sleeping or sensor.ext_back_humidity > 65
       value_selector.bedroom_heatpump_fan_mode:
         auto: binary_sensor.heatpump_winter_mode or room_temperature > target_temperature + 1
         quiet: True