diff --git a/apps/Makefile b/apps/Makefile
index 6a76e3d2d..b856014c9 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -16,6 +16,7 @@ app_objs += $(addprefix apps/,\
   battery_timer.o\
   battery_view.o\
   constant.o\
+  backlight_dimming_timer.o\
   empty_battery_window.o\
   exam_pop_up_controller.o\
   global_preferences.o\
@@ -24,6 +25,7 @@ app_objs += $(addprefix apps/,\
   main.o\
   math_toolbox.o\
   node.o\
+  suspend_timer.o\
   title_bar_view.o\
   toolbox_node.o\
   usb_timer.o\
diff --git a/apps/apps_container.cpp b/apps/apps_container.cpp
index 4227eb7ea..473b517e9 100644
--- a/apps/apps_container.cpp
+++ b/apps/apps_container.cpp
@@ -27,7 +27,9 @@ AppsContainer::AppsContainer() :
   m_examPopUpController(ExamPopUpController()),
   m_ledTimer(LedTimer()),
   m_batteryTimer(BatteryTimer(this)),
-  m_USBTimer(USBTimer(this))
+  m_USBTimer(USBTimer(this)),
+  m_suspendTimer(SuspendTimer(this)),
+  m_backlightDimmingTimer(BacklightDimmingTimer())
 {
   refreshPreferences();
   m_emptyBatteryWindow.setFrame(KDRect(0, 0, Ion::Display::Width, Ion::Display::Height));
@@ -75,18 +77,25 @@ VariableBoxController * AppsContainer::variableBoxController() {
   return &m_variableBoxController;
 }
 
+void AppsContainer::suspend() {
+  Ion::Power::suspend();
+  /* Ion::Power::suspend() completely shuts down the LCD controller. Therefore
+   * the frame memory is lost. That's why we need to force a window redraw
+   * upon wakeup, otherwise the screen is filled with noise. */
+  window()->redraw(true);
+}
+
 bool AppsContainer::dispatchEvent(Ion::Events::Event event) {
+  m_backlightDimmingTimer.reset();
+  m_suspendTimer.reset();
+  Ion::Backlight::setBrightness(Ion::Backlight::MaxBrightness);
   // Home and Power buttons are not sent to apps. We handle them straight away.
   if (event == Ion::Events::Home && activeApp() != &m_hardwareTestApp) {
     switchTo(appAtIndex(0));
     return true;
   }
   if (event == Ion::Events::OnOff && activeApp() != &m_hardwareTestApp) {
-    Ion::Power::suspend();
-    /* Ion::Power::suspend() completely shuts down the LCD controller. Therefore
-     * the frame memory is lost. That's why we need to force a window redraw
-     * upon wakeup, otherwise the screen is filled with noise. */
-    window()->redraw(true);
+    suspend();
     return true;
   }
   bool didProcessEvent = Container::dispatchEvent(event);
@@ -134,7 +143,7 @@ Window * AppsContainer::window() {
 }
 
 int AppsContainer::numberOfTimers() {
-  return 2+(GlobalPreferences::sharedGlobalPreferences()->examMode() == GlobalPreferences::ExamMode::Activate);
+  return 4+(GlobalPreferences::sharedGlobalPreferences()->examMode() == GlobalPreferences::ExamMode::Activate);
 }
 
 Timer * AppsContainer::timerAtIndex(int i) {
@@ -144,6 +153,10 @@ Timer * AppsContainer::timerAtIndex(int i) {
     case 1:
       return &m_USBTimer;
     case 2:
+      return &m_suspendTimer;
+    case 3:
+      return &m_backlightDimmingTimer;
+    case 4:
       return &m_ledTimer;
     default:
       assert(false);
diff --git a/apps/apps_container.h b/apps/apps_container.h
index 258e81a8b..5337d5aec 100644
--- a/apps/apps_container.h
+++ b/apps/apps_container.h
@@ -18,6 +18,8 @@
 #include "led_timer.h"
 #include "battery_timer.h"
 #include "usb_timer.h"
+#include "suspend_timer.h"
+#include "backlight_dimming_timer.h"
 
 #define USE_PIC_VIEW_APP 0
 #if USE_PIC_VIEW_APP
@@ -35,6 +37,7 @@ public:
   Poincare::Context * globalContext();
   MathToolbox * mathToolbox();
   VariableBoxController * variableBoxController();
+  void suspend();
   virtual bool dispatchEvent(Ion::Events::Event event) override;
   void switchTo(App * app) override;
   void updateBatteryState();
@@ -67,6 +70,8 @@ private:
   LedTimer m_ledTimer;
   BatteryTimer m_batteryTimer;
   USBTimer m_USBTimer;
+  SuspendTimer m_suspendTimer;
+  BacklightDimmingTimer m_backlightDimmingTimer;
 };
 
 #endif
diff --git a/apps/backlight_dimming_timer.cpp b/apps/backlight_dimming_timer.cpp
new file mode 100644
index 000000000..58be974eb
--- /dev/null
+++ b/apps/backlight_dimming_timer.cpp
@@ -0,0 +1,10 @@
+#include "backlight_dimming_timer.h"
+
+BacklightDimmingTimer::BacklightDimmingTimer() :
+  Timer(k_idleBeforeDimmingDuration/Timer::TickDuration)
+{
+}
+
+void BacklightDimmingTimer::fire() {
+  Ion::Backlight::setBrightness(k_dimBacklightBrightness);
+}
diff --git a/apps/backlight_dimming_timer.h b/apps/backlight_dimming_timer.h
new file mode 100644
index 000000000..85e8138ea
--- /dev/null
+++ b/apps/backlight_dimming_timer.h
@@ -0,0 +1,16 @@
+#ifndef APPS_BACKLIGHT_DIMMING_TIMER_H
+#define APPS_BACKLIGHT_DIMMING_TIMER_H
+
+#include <escher.h>
+
+class BacklightDimmingTimer : public Timer {
+public:
+  BacklightDimmingTimer();
+private:
+  constexpr static int k_idleBeforeDimmingDuration = 30*1000; // In miliseconds
+  constexpr static int k_dimBacklightBrightness = 0; // Intensity value from 0 to 15
+  void fire() override;
+};
+
+#endif
+
diff --git a/apps/suspend_timer.cpp b/apps/suspend_timer.cpp
new file mode 100644
index 000000000..48fa53fc2
--- /dev/null
+++ b/apps/suspend_timer.cpp
@@ -0,0 +1,12 @@
+#include "suspend_timer.h"
+#include "apps_container.h"
+
+SuspendTimer::SuspendTimer(AppsContainer * container) :
+  Timer(k_idleBeforeSuspendDuration/Timer::TickDuration),
+  m_container(container)
+{
+}
+
+void SuspendTimer::fire() {
+  m_container->suspend();
+}
diff --git a/apps/suspend_timer.h b/apps/suspend_timer.h
new file mode 100644
index 000000000..3124fc246
--- /dev/null
+++ b/apps/suspend_timer.h
@@ -0,0 +1,18 @@
+#ifndef APPS_SUSPEND_TIMER_H
+#define APPS_SUSPEND_TIMER_H
+
+#include <escher.h>
+
+class AppsContainer;
+
+class SuspendTimer : public Timer {
+public:
+  SuspendTimer(AppsContainer * container);
+private:
+  constexpr static int k_idleBeforeSuspendDuration = 5*60*1000; // In miliseconds
+  void fire() override;
+  AppsContainer * m_container;
+};
+
+#endif
+
diff --git a/ion/include/ion/backlight.h b/ion/include/ion/backlight.h
index bf464fb43..8c650128e 100644
--- a/ion/include/ion/backlight.h
+++ b/ion/include/ion/backlight.h
@@ -6,6 +6,7 @@
 namespace Ion {
 namespace Backlight {
 
+constexpr uint8_t MaxBrightness = 240;
 void setBrightness(uint8_t b);
 uint8_t brightness();
 
diff --git a/ion/src/simulator/Makefile b/ion/src/simulator/Makefile
index 04147327c..5b78d82bd 100644
--- a/ion/src/simulator/Makefile
+++ b/ion/src/simulator/Makefile
@@ -1,4 +1,5 @@
 objs += $(addprefix ion/src/simulator/, \
+  backlight.o\
   battery.o\
   init.o\
   led.o\
diff --git a/ion/src/simulator/backlight.cpp b/ion/src/simulator/backlight.cpp
new file mode 100644
index 000000000..6c7a0d02c
--- /dev/null
+++ b/ion/src/simulator/backlight.cpp
@@ -0,0 +1,9 @@
+#include <ion/backlight.h>
+
+uint8_t Ion::Backlight::brightness() {
+  return 0;
+}
+
+void Ion::Backlight::setBrightness(uint8_t b) {
+  return;
+}