diff --git a/src/MQTTManager.cpp b/src/MQTTManager.cpp
index e8533137..86d5e9dd 100644
--- a/src/MQTTManager.cpp
+++ b/src/MQTTManager.cpp
@@ -297,7 +297,7 @@ void onMqttMessage(const char *topic, const uint8_t *payload, uint16_t length)
         if (doc.containsKey("sleep"))
         {
             DisplayManager.setPower(false);
-            PowerManager.sleep(doc["sleep"].as<uint32_t>());
+            PowerManager.sleep(doc["sleep"].as<uint64_t>());
         }
 
         delete[] payloadCopy;
diff --git a/src/PowerManager.cpp b/src/PowerManager.cpp
index 85210406..867a86f2 100644
--- a/src/PowerManager.cpp
+++ b/src/PowerManager.cpp
@@ -2,7 +2,7 @@
 #include <ArduinoJson.h>
 #include "Globals.h"
 
-#define uS_TO_S_FACTOR 1000000
+#define uS_TO_S_FACTOR 1000000L
 
 // The getter for the instantiated singleton instance
 PowerManager_ &PowerManager_::getInstance()
@@ -32,12 +32,12 @@ void PowerManager_::sleepParser(const char *json)
 
   if (doc.containsKey("sleep"))
   {
-    uint32_t seconds = doc["sleep"].as<uint32_t>();
+    uint64_t seconds = doc["sleep"].as<uint64_t>();
     sleep(seconds);
   }
 }
 
-void PowerManager_::sleep(uint32_t seconds)
+void PowerManager_::sleep(uint64_t seconds)
 {
   esp_sleep_enable_timer_wakeup(seconds * uS_TO_S_FACTOR);
   Serial.print("Going to sleep...\n");
diff --git a/src/PowerManager.h b/src/PowerManager.h
index 52bd0d83..b9f9979c 100644
--- a/src/PowerManager.h
+++ b/src/PowerManager.h
@@ -11,7 +11,7 @@ class PowerManager_
     static PowerManager_ &getInstance();
     void setup();
     void sleepParser(const char*);
-    void sleep(uint32_t);
+    void sleep(uint64_t);
 };
 
 extern PowerManager_ &PowerManager;