diff --git a/gardensensor.ino b/gardensensor.ino
index 333d398..49e852a 100644
--- a/gardensensor.ino
+++ b/gardensensor.ino
@@ -33,11 +33,11 @@ void setup() {
 
     if (!wifi_connect()) {
         Serial.printf("Failed to connect to WiFi, status %s\n", WiFi.status());
-        reboot();
+        retry_after_minutes(1);
     }
     if (!mqtt_connect()) {
         Serial.println("Could not connect to MQTT");
-        reboot();
+        retry_after_minutes(1);
     }
 
     if (!publish_all_config(&mqtt, WiFi.macAddress().c_str())) {
@@ -49,7 +49,7 @@ void setup() {
         auto msg = "Seesaw not found";
         Serial.println(msg);
         mqtt_send_error(msg);
-        reboot();
+        retry_after_minutes(1);
     }
 
     values.boot_count = boot_count;
@@ -57,7 +57,7 @@ void setup() {
         auto msg = "Failed to get sensor values";
         Serial.println(msg);
         mqtt_send_error(msg);
-        reboot();
+        retry_after_minutes(1);
     } else {
         Serial.println("Got Values:");
         Serial.printf("  Moisture: %d\n", values.moisture);
@@ -87,15 +87,6 @@ void loop() {
     while (1) delay(1471228928);
 }
 
-void error_led_blink() {
-    while (1) {
-        digitalWrite(13, 1);
-        delay(500);
-        digitalWrite(13, 0);
-        delay(500);
-    }
-}
-
 boolean wifi_connect() {
     Serial.printf("Connecting to WiFi (%s) ", CFG_WIFI_SSID);
     WiFi.begin(CFG_WIFI_SSID, CFG_WIFI_PSK);
@@ -148,10 +139,6 @@ boolean mqtt_connect() {
     return true;
 }
 
-void mqtt_send_error(const __FlashStringHelper* msg) {
-    mqtt_send_error((const char*)msg);
-}
-
 void mqtt_send_error(const char* msg) {
     if (!mqtt.connected()) {
         Serial.println("MQTT client not connected, cannot send error message");
@@ -160,11 +147,10 @@ void mqtt_send_error(const char* msg) {
     mqtt.publish(TOPIC_ERRORS, msg);
 }
 
-void reboot() {
+void retry_after_minutes(int minutes) {
     if (mqtt.connected()) {
         mqtt.disconnect();
     }
-    Serial.println("Rebooting in 2 seconds");
-    delay(2000);
-    ESP.restart();
+    esp_sleep_enable_timer_wakeup(minutes * 60 * 1000 * 1000);
+    esp_deep_sleep_start();
 }