diff --git a/sam/src/SckAux.cpp b/sam/src/SckAux.cpp
index 718bf61..c350b1b 100644
--- a/sam/src/SckAux.cpp
+++ b/sam/src/SckAux.cpp
@@ -1577,7 +1577,13 @@ bool Atlas::getBusyState()
     if (millis() - lastUpdate < 2) return true;
     switch (state) {
 
-        case REST: {
+        case SLEEP: {
+
+            if (millis() - lastCommandSent >= shortWait) {
+                if (sendCommand((char*)"r")) state = REST;
+            }
+
+        } case REST: {
 
             // ORP doesn't need temp compensation so we jump directly to ask reading
             if (ORP) {
@@ -1668,7 +1674,9 @@ void Atlas::goToSleep()
     auxWire.beginTransmission(deviceAddress);
     auxWire.write("Sleep");
     auxWire.endTransmission();
+    state = SLEEP;
 }
+
 bool Atlas::sendCommand(char* command)
 {
 
@@ -1688,7 +1696,7 @@ bool Atlas::sendCommand(char* command)
             return true;
         }
 
-        delay(300);
+        delay(shortWait);
     }
     return false;
 }
diff --git a/sam/src/SckAux.h b/sam/src/SckAux.h
index 49db7a8..cb7147b 100644
--- a/sam/src/SckAux.h
+++ b/sam/src/SckAux.h
@@ -360,6 +360,7 @@ class Atlas
         uint32_t lastUpdate = 0;
         enum State {
             REST,
+            SLEEP,
             TEMP_COMP_SENT,
             ASKED_READING,
         };