diff --git a/main.c b/main.c
index f639ada..bf7887c 100644
--- a/main.c
+++ b/main.c
@@ -31,6 +31,7 @@
 
 #include <avr/io.h>
 #include <avr/interrupt.h>
+#include <avr/sleep.h>
 
 #include "main.h"
 #include "blmc.h"
@@ -156,6 +157,8 @@ int main(void)
 	if (read_parameters())
 		blmc.flags |= FLAG_INVALID_EEPROM;
 
+	set_sleep_mode(SLEEP_MODE_IDLE);
+
 	sei();
 
 	while (1) {
@@ -204,6 +207,8 @@ int main(void)
 		/* do a spinup from main loop (blocking for > 200ms) */
 		if (blmc.flags & FLAG_COM_SPINUP)
 			spinup();
+
+		sleep_mode();
 	};
 	return 0;
 }