diff --git a/lib/hal/HalInput.cpp b/lib/hal/HalInput.cpp
index 0c55f1e7..bed3d861 100644
--- a/lib/hal/HalInput.cpp
+++ b/lib/hal/HalInput.cpp
@@ -69,17 +69,17 @@ unsigned long HalInput::getHeldTime() const {
 #endif
 }
 
-void HalInput::setupGpioWakeup() {
+void startDeepSleep(InputManager& inputMgr) {
 #if CROSSPOINT_EMULATED == 0
   esp_deep_sleep_enable_gpio_wakeup(1ULL << InputManager::POWER_BUTTON_PIN, ESP_GPIO_WAKEUP_GPIO_LOW);
   // Ensure that the power button has been released to avoid immediately turning back on if you're holding it
-  while (isPressed(InputManager::BTN_POWER)) {
+  while (inputMgr.isPressed(InputManager::BTN_POWER)) {
     delay(50);
-    update();
+    inputMgr.update();
   }
   // Enter Deep Sleep
   esp_deep_sleep_start();
 #else
-  // TODO
+  Serial.println("[   ] GPIO wakeup setup skipped in emulation mode.");
 #endif
 }
diff --git a/lib/hal/HalInput.h b/lib/hal/HalInput.h
index a06771b4..f1dd8ce5 100644
--- a/lib/hal/HalInput.h
+++ b/lib/hal/HalInput.h
@@ -23,8 +23,6 @@ class HalInput {
   bool wasAnyReleased() const;
   unsigned long getHeldTime() const;
 
-  void setupGpioWakeup();
-
   // Button indices
   static constexpr uint8_t BTN_BACK = 0;
   static constexpr uint8_t BTN_CONFIRM = 1;
@@ -38,3 +36,5 @@ class HalInput {
 #if CROSSPOINT_EMULATED == 1
 using InputManager = HalInput;
 #endif
+
+void startDeepSleep(InputManager& inputMgr);
diff --git a/src/main.cpp b/src/main.cpp
index 82d9a0c9..54ecade2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -184,7 +184,7 @@ void verifyWakeupLongPress() {
   if (abort) {
     // Button released too early. Returning to sleep.
     // IMPORTANT: Re-arm the wakeup trigger before sleeping again
-    inputManager.setupGpioWakeup();
+    startDeepSleep(inputManager);
   }
 }
 
@@ -207,7 +207,7 @@ void enterDeepSleep() {
   einkDisplay.deepSleep();
   Serial.printf("[%lu] [   ] Power button press calibration value: %lu ms\n", millis(), t2 - t1);
   Serial.printf("[%lu] [   ] Entering deep sleep.\n", millis());
-  inputManager.setupGpioWakeup();
+  startDeepSleep(inputManager);
 }
 
 void onGoHome();