diff --git a/components/esp_system/include/esp_sleep.h b/components/esp_system/include/esp_sleep.h
index bcfe6227e6..5b90614cc3 100644
--- a/components/esp_system/include/esp_sleep.h
+++ b/components/esp_system/include/esp_sleep.h
@@ -68,6 +68,7 @@ typedef enum {
     ESP_SLEEP_WAKEUP_WIFI,              //!< Wakeup caused by WIFI (light sleep only)
     ESP_SLEEP_WAKEUP_COCPU,             //!< Wakeup caused by COCPU int
     ESP_SLEEP_WAKEUP_COCPU_TRAP_TRIG,   //!< Wakeup caused by COCPU crash
+    ESP_SLEEP_WAKEUP_BT,           //!< Wakeup caused by BT (light sleep only)
 } esp_sleep_source_t;
 
 /* Leave this type define for compatibility */
diff --git a/components/esp_system/include/esp_system.h b/components/esp_system/include/esp_system.h
index ea3e914159..c251b41635 100644
--- a/components/esp_system/include/esp_system.h
+++ b/components/esp_system/include/esp_system.h
@@ -42,6 +42,8 @@ typedef enum {
 #define UNIVERSAL_MAC_ADDR_NUM CONFIG_ESP32_UNIVERSAL_MAC_ADDRESSES
 #elif CONFIG_IDF_TARGET_ESP32S2
 #define UNIVERSAL_MAC_ADDR_NUM CONFIG_ESP32S2_UNIVERSAL_MAC_ADDRESSES
+#elif CONFIG_IDF_TARGET_ESP32C3
+#define UNIVERSAL_MAC_ADDR_NUM CONFIG_ESP32C3_UNIVERSAL_MAC_ADDRESSES
 #endif
 /** @endcond */
 
diff --git a/components/esp_system/intr_alloc.c b/components/esp_system/intr_alloc.c
index d440ca9f24..22650cfc25 100644
--- a/components/esp_system/intr_alloc.c
+++ b/components/esp_system/intr_alloc.c
@@ -585,6 +585,13 @@ esp_err_t esp_intr_alloc_intrstatus(int source, int flags, uint32_t intrstatusre
         esp_intr_disable(ret);
     }
 
+#if CONFIG_IDF_TARGET_ESP32C3
+    // TODO ESP32-C3 IDF-2126, these need to be set or the new interrupt won't fire, but are currently hard-coded
+    // for priority and level...
+    esprv_intc_int_set_priority(intr, 1);
+    esprv_intc_int_set_type(BIT(intr), INTR_TYPE_LEVEL);
+#endif
+
     portEXIT_CRITICAL(&spinlock);
 
     //Fill return handle if needed, otherwise free handle.
diff --git a/components/esp_system/test/test_intr_alloc.c b/components/esp_system/test/test_intr_alloc.c
index 67bb6b039f..a917a79c4d 100644
--- a/components/esp_system/test/test_intr_alloc.c
+++ b/components/esp_system/test/test_intr_alloc.c
@@ -9,17 +9,15 @@
 #include "freertos/task.h"
 #include "freertos/semphr.h"
 #include "freertos/queue.h"
-#include "freertos/xtensa_api.h"
 #include "unity.h"
 #include "soc/uart_periph.h"
-#include "soc/dport_reg.h"
 #include "soc/gpio_periph.h"
 #include "esp_intr_alloc.h"
 #include "driver/periph_ctrl.h"
 #include "driver/timer.h"
 #include "sdkconfig.h"
 
-#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S3)
+#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S3,ESP32C3)
 
 #define TIMER_DIVIDER   16               /*!< Hardware timer clock divider */
 #define TIMER_SCALE    (TIMER_BASE_CLK / TIMER_DIVIDER)  /*!< used to calculate counter value */
diff --git a/components/esp_system/test/test_sleep.c b/components/esp_system/test/test_sleep.c
index fdc438fd53..18ae86d897 100644
--- a/components/esp_system/test/test_sleep.c
+++ b/components/esp_system/test/test_sleep.c
@@ -19,6 +19,7 @@
 #include "sdkconfig.h"
 #include "esp_rom_sys.h"
 
+#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3)
 
 #if CONFIG_IDF_TARGET_ESP32
 #include "esp32/clk.h"
@@ -31,8 +32,6 @@
 #include "esp32s3/rom/rtc.h"
 #endif
 
-#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S3)
-
 #define ESP_EXT0_WAKEUP_LEVEL_LOW 0
 #define ESP_EXT0_WAKEUP_LEVEL_HIGH 1
 
@@ -63,7 +62,7 @@ TEST_CASE("wake up from deep sleep using timer", "[deepsleep][reset=DEEPSLEEP_RE
     esp_deep_sleep_start();
 }
 
-#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2)
+#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)
 TEST_CASE("light sleep followed by deep sleep", "[deepsleep][reset=DEEPSLEEP_RESET]")
 {
     esp_sleep_enable_timer_wakeup(1000000);
@@ -82,7 +81,7 @@ TEST_CASE("wake up from light sleep using timer", "[deepsleep]")
                (tv_stop.tv_usec - tv_start.tv_usec) * 1e-3f;
     TEST_ASSERT_INT32_WITHIN(500, 2000, (int) dt);
 }
-#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2)
+#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)
 
 static void test_light_sleep(void* arg)
 {
@@ -417,7 +416,7 @@ __attribute__((unused)) static uint32_t get_cause(void)
     return wakeup_cause;
 }
 
-#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2)
+#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)
 // This test case verifies deactivation of trigger for wake up sources
 TEST_CASE("disable source trigger behavior", "[deepsleep]")
 {
@@ -490,7 +489,7 @@ TEST_CASE("disable source trigger behavior", "[deepsleep]")
     // Disable ext0 wakeup source, as this might interfere with other tests
     ESP_ERROR_CHECK(esp_sleep_disable_wakeup_source(ESP_SLEEP_WAKEUP_EXT0));
 }
-#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2)
+#endif // !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S2, ESP32C3)
 
 static RTC_DATA_ATTR struct timeval start;
 static void trigger_deepsleep(void)
@@ -527,4 +526,4 @@ static void check_time_deepsleep(void)
 
 TEST_CASE_MULTIPLE_STAGES("check a time after wakeup from deep sleep", "[deepsleep][reset=DEEPSLEEP_RESET]", trigger_deepsleep, check_time_deepsleep);
 
-#endif // #if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S3)
+#endif // #if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3, ESP32S3)