diff --git a/drivers/lora/sx12xx_common.c b/drivers/lora/sx12xx_common.c
index b62958e8116..05c78b58dc9 100644
--- a/drivers/lora/sx12xx_common.c
+++ b/drivers/lora/sx12xx_common.c
@@ -148,5 +148,14 @@ int sx12xx_init(const struct device *dev)
 	dev_data.events.RxDone = sx12xx_ev_rx_done;
 	Radio.Init(&dev_data.events);
 
+	/*
+	 * Automatically place the radio into sleep mode upon boot.
+	 * The required `lora_config` call before transmission or reception
+	 * will bring the radio out of sleep mode before it is used. The radio
+	 * is automatically placed back into sleep mode upon TX or RX
+	 * completion.
+	 */
+	Radio.Sleep();
+
 	return 0;
 }