diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index e4f85a8d87..8b4fa1ab7c 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -1471,11 +1471,6 @@
   #define FEEDRATE_CHANGE_BEEP_FREQUENCY 440
 #endif
 
-//
-// LCD Backlight Timeout
-//
-//#define LCD_BACKLIGHT_TIMEOUT_MINS 1  // (minutes) Timeout before turning off the backlight
-
 #if HAS_BED_PROBE && ANY(HAS_MARLINUI_MENU, HAS_TFT_LVGL_UI)
   //#define PROBE_OFFSET_WIZARD       // Add a Probe Z Offset calibration option to the LCD menu
   #if ENABLED(PROBE_OFFSET_WIZARD)
@@ -2206,6 +2201,15 @@
   //#define TFT_BTOKMENU_COLOR 0x145F // 00010 100010 11111 Cyan
 #endif
 
+//
+// LCD Backlight Timeout
+// Requires a display with a controllable backlight
+//
+//#define LCD_BACKLIGHT_TIMEOUT_MINS 1  // (minutes) Timeout before turning off the backlight
+#if defined(DISPLAY_SLEEP_MINUTES) || defined(LCD_BACKLIGHT_TIMEOUT_MINS)
+  #define EDITABLE_DISPLAY_TIMEOUT      // Edit timeout with M255 S<minutes> and a menu item
+#endif
+
 //
 // ADC Button Debounce
 //
diff --git a/Marlin/src/core/types.h b/Marlin/src/core/types.h
index d92dbde8b7..bcbf2f07aa 100644
--- a/Marlin/src/core/types.h
+++ b/Marlin/src/core/types.h
@@ -198,7 +198,7 @@ typedef Flags<8> flags_8_t;
 typedef Flags<16> flags_16_t;
 
 // Flags for some axis states, with per-axis aliases xyzijkuvwe
-typedef struct AxisFlags {
+typedef struct {
   union {
     struct Flags<LOGICAL_AXES> flags;
     struct { bool LOGICAL_AXIS_LIST(e:1, x:1, y:1, z:1, i:1, j:1, k:1, u:1, v:1, w:1); };
@@ -212,7 +212,7 @@ typedef struct AxisFlags {
   FI bool operator[](const int n) const      { return flags[n]; }
   FI int size() const                        { return sizeof(flags); }
   FI operator bool() const                   { return flags; }
-} axis_flags_t;
+} AxisFlags;
 
 //
 // Enumerated axis indices
diff --git a/Marlin/src/feature/bedlevel/bdl/bdl.cpp b/Marlin/src/feature/bedlevel/bdl/bdl.cpp
index 5345bb78c5..d469bb0c06 100644
--- a/Marlin/src/feature/bedlevel/bdl/bdl.cpp
+++ b/Marlin/src/feature/bedlevel/bdl/bdl.cpp
@@ -195,7 +195,7 @@ void BDS_Leveling::process() {
       safe_delay(10);
       if (config_state == BDS_CALIBRATE_START) {
         config_state = BDS_CALIBRATING;
-        REMEMBER(gsit, gcode.stepper_inactive_time, SEC_TO_MS(60 * 5));
+        REMEMBER(gsit, gcode.stepper_inactive_time, MIN_TO_MS(5));
         SERIAL_ECHOLNPGM("c_z0:", planner.get_axis_position_mm(Z_AXIS), "-", pos_zero_offset);
 
         // Move the z axis instead of enabling the Z axis with M17
diff --git a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
index d136f0000d..3d0013b6d2 100644
--- a/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
+++ b/Marlin/src/feature/bedlevel/ubl/ubl_G29.cpp
@@ -772,7 +772,8 @@ void unified_bed_leveling::shift_mesh_height() {
       const grid_count_t point_num = (GRID_MAX_POINTS - count) + 1;
       SERIAL_ECHOLNPGM("Probing mesh point ", point_num, "/", GRID_MAX_POINTS, ".");
       TERN_(HAS_STATUS_MESSAGE, ui.status_printf(0, F(S_FMT " %i/%i"), GET_TEXT(MSG_PROBING_POINT), point_num, int(GRID_MAX_POINTS)));
-      TERN_(LCD_BACKLIGHT_TIMEOUT_MINS, ui.refresh_backlight_timeout());
+      TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());
+      TERN_(DWIN_LCD_PROUI, dwinRedrawScreen());
 
       #if HAS_MARLINUI_MENU
         if (ui.button_pressed()) {
diff --git a/Marlin/src/gcode/calibrate/G76_M871.cpp b/Marlin/src/gcode/calibrate/G76_M871.cpp
index 6fe3dd89cf..bb69b75d50 100644
--- a/Marlin/src/gcode/calibrate/G76_M871.cpp
+++ b/Marlin/src/gcode/calibrate/G76_M871.cpp
@@ -256,7 +256,7 @@
 
         say_waiting_for_probe_heating();
         SERIAL_ECHOLNPGM(" Bed:", target_bed, " Probe:", target_probe);
-        const millis_t probe_timeout_ms = millis() + SEC_TO_MS(900UL);
+        const millis_t probe_timeout_ms = millis() + MIN_TO_MS(15);
         while (thermalManager.degProbe() < target_probe) {
           if (report_temps(next_temp_report, probe_timeout_ms)) {
             SERIAL_ECHOLNPGM("!Probe heating timed out.");
diff --git a/Marlin/src/gcode/gcode.cpp b/Marlin/src/gcode/gcode.cpp
index d519bd4e29..6a0e8cb171 100644
--- a/Marlin/src/gcode/gcode.cpp
+++ b/Marlin/src/gcode/gcode.cpp
@@ -793,7 +793,7 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
         case 250: M250(); break;                                  // M250: Set LCD contrast
       #endif
 
-      #if HAS_GCODE_M255
+      #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
         case 255: M255(); break;                                  // M255: Set LCD Sleep/Backlight Timeout (Minutes)
       #endif
 
diff --git a/Marlin/src/gcode/gcode.h b/Marlin/src/gcode/gcode.h
index 61ff0b047c..fffd0d714b 100644
--- a/Marlin/src/gcode/gcode.h
+++ b/Marlin/src/gcode/gcode.h
@@ -909,7 +909,7 @@ private:
     static void M250_report(const bool forReplay=true);
   #endif
 
-  #if HAS_GCODE_M255
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
     static void M255();
     static void M255_report(const bool forReplay=true);
   #endif
diff --git a/Marlin/src/gcode/lcd/M255.cpp b/Marlin/src/gcode/lcd/M255.cpp
index 8dc8099de1..2b982ee5d9 100644
--- a/Marlin/src/gcode/lcd/M255.cpp
+++ b/Marlin/src/gcode/lcd/M255.cpp
@@ -21,7 +21,7 @@
  */
 #include "../../inc/MarlinConfig.h"
 
-#if HAS_GCODE_M255
+#if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
 
 #include "../gcode.h"
 #include "../../lcd/marlinui.h"
@@ -51,4 +51,4 @@ void GcodeSuite::M255_report(const bool forReplay/*=true*/) {
   );
 }
 
-#endif // HAS_GCODE_M255
+#endif // EDITABLE_DISPLAY_TIMEOUT
diff --git a/Marlin/src/inc/Conditionals_adv.h b/Marlin/src/inc/Conditionals_adv.h
index ba074e2560..755b251b18 100644
--- a/Marlin/src/inc/Conditionals_adv.h
+++ b/Marlin/src/inc/Conditionals_adv.h
@@ -893,11 +893,11 @@
 #if ALL(HAS_RESUME_CONTINUE, PRINTER_EVENT_LEDS, HAS_MEDIA)
   #define HAS_LEDS_OFF_FLAG 1
 #endif
-#if DISPLAY_SLEEP_MINUTES || TOUCH_IDLE_SLEEP_MINS
+#if defined(DISPLAY_SLEEP_MINUTES) || defined(TOUCH_IDLE_SLEEP_MINS)
   #define HAS_DISPLAY_SLEEP 1
 #endif
-#if HAS_DISPLAY_SLEEP || LCD_BACKLIGHT_TIMEOUT_MINS
-  #define HAS_GCODE_M255 1
+#ifdef LCD_BACKLIGHT_TIMEOUT_MINS
+  #define HAS_BACKLIGHT_TIMEOUT 1
 #endif
 
 #if ANY(DIGIPOT_MCP4018, DIGIPOT_MCP4451)
diff --git a/Marlin/src/inc/SanityCheck.h b/Marlin/src/inc/SanityCheck.h
index 70eba0d60c..2e1149e668 100644
--- a/Marlin/src/inc/SanityCheck.h
+++ b/Marlin/src/inc/SanityCheck.h
@@ -2762,7 +2762,7 @@ static_assert(COUNT(arm) == LOGICAL_AXES, "AXIS_RELATIVE_MODES must contain " _L
   #endif
 #endif
 
-#if LCD_BACKLIGHT_TIMEOUT_MINS
+#if HAS_BACKLIGHT_TIMEOUT
   #if !HAS_ENCODER_ACTION && DISABLED(HAS_DWIN_E3V2)
     #error "LCD_BACKLIGHT_TIMEOUT_MINS requires an LCD with encoder or keypad."
   #elif ENABLED(NEOPIXEL_BKGD_INDEX_FIRST)
diff --git a/Marlin/src/lcd/e3v2/common/encoder.cpp b/Marlin/src/lcd/e3v2/common/encoder.cpp
index eb064950ec..cb14596849 100644
--- a/Marlin/src/lcd/e3v2/common/encoder.cpp
+++ b/Marlin/src/lcd/e3v2/common/encoder.cpp
@@ -87,9 +87,7 @@ EncoderState encoderReceiveAnalyze() {
       #if PIN_EXISTS(LCD_LED)
         //LED_Action();
       #endif
-      #if LCD_BACKLIGHT_TIMEOUT_MINS
-        ui.refresh_backlight_timeout();
-      #endif
+      TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());
       if (!ui.backlight) {
         ui.refresh_brightness();
         return ENCODER_DIFF_NO;
@@ -161,9 +159,7 @@ EncoderState encoderReceiveAnalyze() {
     temp_diff = 0;
   }
   if (temp_diffState != ENCODER_DIFF_NO) {
-    #if LCD_BACKLIGHT_TIMEOUT_MINS
-      ui.refresh_backlight_timeout();
-    #endif
+    TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());
     if (!ui.backlight) ui.refresh_brightness();
   }
   return temp_diffState;
diff --git a/Marlin/src/lcd/e3v2/proui/dwin.cpp b/Marlin/src/lcd/e3v2/proui/dwin.cpp
index 8d4aa9106b..7c68c60f81 100644
--- a/Marlin/src/lcd/e3v2/proui/dwin.cpp
+++ b/Marlin/src/lcd/e3v2/proui/dwin.cpp
@@ -1249,7 +1249,7 @@ void eachMomentUpdate() {
   static millis_t next_var_update_ms = 0, next_rts_update_ms = 0, next_status_update_ms = 0;
   const millis_t ms = millis();
 
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
+  #if HAS_BACKLIGHT_TIMEOUT
     if (ui.backlight_off_ms && ELAPSED(ms, ui.backlight_off_ms)) {
       turnOffBacklight(); // Backlight off
       ui.backlight_off_ms = 0;
@@ -2235,7 +2235,7 @@ void setMoveZ() { hmiValue.axis = Z_AXIS; setPFloatOnClick(Z_MIN_POS, Z_MAX_POS,
 
 #endif
 
-#if LCD_BACKLIGHT_TIMEOUT_MINS
+#if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
   void applyTimer() { ui.backlight_timeout_minutes = menuData.value; }
   void setTimer() { setIntOnClick(ui.backlight_timeout_min, ui.backlight_timeout_max, ui.backlight_timeout_minutes, applyTimer); }
 #endif
@@ -3123,7 +3123,7 @@ void drawAdvancedSettingsMenu() {
     #if HAS_LOCKSCREEN
       MENU_ITEM(ICON_Lock, MSG_LOCKSCREEN, onDrawMenuItem, dwinLockScreen);
     #endif
-    #if LCD_BACKLIGHT_TIMEOUT_MINS
+    #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
       EDIT_ITEM(ICON_Brightness, MSG_SCREEN_TIMEOUT, onDrawPIntMenu, setTimer, &ui.backlight_timeout_minutes);
     #endif
     #if ENABLED(SOUND_MENU_ITEM)
@@ -3347,7 +3347,7 @@ void drawTuneMenu() {
       EDIT_ITEM(ICON_Brightness, MSG_BRIGHTNESS, onDrawPInt8Menu, setBrightness, &ui.brightness);
       MENU_ITEM(ICON_Brightness, MSG_BRIGHTNESS_OFF, onDrawMenuItem, turnOffBacklight);
     #endif
-    #if LCD_BACKLIGHT_TIMEOUT_MINS
+    #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
       EDIT_ITEM(ICON_Brightness, MSG_SCREEN_TIMEOUT, onDrawPIntMenu, setTimer, &ui.backlight_timeout_minutes);
     #endif
     #if ENABLED(CASE_LIGHT_MENU)
diff --git a/Marlin/src/lcd/e3v2/proui/plot.cpp b/Marlin/src/lcd/e3v2/proui/plot.cpp
index 92c6c94717..84c58389a6 100644
--- a/Marlin/src/lcd/e3v2/proui/plot.cpp
+++ b/Marlin/src/lcd/e3v2/proui/plot.cpp
@@ -73,9 +73,7 @@ void Plot::update(const_float_t value) {
     dwinDrawPoint(COLOR_YELLOW, 1, 1, x2 - 1, y);
   }
   graphpoints++;
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
-    ui.refresh_backlight_timeout();
-  #endif
+  TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());
 }
 
 #endif // PROUI_TUNING_GRAPH
diff --git a/Marlin/src/lcd/marlinui.cpp b/Marlin/src/lcd/marlinui.cpp
index 4eb58f52ae..60fb298dfc 100644
--- a/Marlin/src/lcd/marlinui.cpp
+++ b/Marlin/src/lcd/marlinui.cpp
@@ -24,7 +24,7 @@
 
 #include "../MarlinCore.h" // for printingIsPaused
 
-#if LED_POWEROFF_TIMEOUT > 0 || ALL(HAS_WIRED_LCD, PRINTER_EVENT_LEDS) || (defined(LCD_BACKLIGHT_TIMEOUT_MINS) && defined(NEOPIXEL_BKGD_INDEX_FIRST))
+#if LED_POWEROFF_TIMEOUT > 0 || ALL(HAS_WIRED_LCD, PRINTER_EVENT_LEDS) || (HAS_BACKLIGHT_TIMEOUT && defined(NEOPIXEL_BKGD_INDEX_FIRST))
   #include "../feature/leds/leds.h"
 #endif
 
@@ -185,10 +185,14 @@ constexpr uint8_t epps = ENCODER_PULSES_PER_STEP;
   volatile int8_t encoderDiff; // Updated in update_buttons, added to encoderPosition every LCD update
 #endif
 
-#if LCD_BACKLIGHT_TIMEOUT_MINS
+#if HAS_BACKLIGHT_TIMEOUT
 
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+    uint8_t MarlinUI::backlight_timeout_minutes; // Initialized by settings.load()
+  #else
+    constexpr uint8_t MarlinUI::backlight_timeout_minutes;
+  #endif
   constexpr uint8_t MarlinUI::backlight_timeout_min, MarlinUI::backlight_timeout_max;
-  uint8_t MarlinUI::backlight_timeout_minutes; // Initialized by settings.load()
   millis_t MarlinUI::backlight_off_ms = 0;
 
   void MarlinUI::refresh_backlight_timeout() {
@@ -203,12 +207,16 @@ constexpr uint8_t epps = ENCODER_PULSES_PER_STEP;
 
 #elif HAS_DISPLAY_SLEEP
 
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+    uint8_t MarlinUI::sleep_timeout_minutes; // Initialized by settings.load()
+  #else
+    constexpr uint8_t MarlinUI::sleep_timeout_minutes;
+  #endif
   constexpr uint8_t MarlinUI::sleep_timeout_min, MarlinUI::sleep_timeout_max;
 
-  uint8_t MarlinUI::sleep_timeout_minutes; // Initialized by settings.load()
-  millis_t MarlinUI::screen_timeout_millis = 0;
+  millis_t MarlinUI::screen_timeout_ms = 0;
   void MarlinUI::refresh_screen_timeout() {
-    screen_timeout_millis = sleep_timeout_minutes ? millis() + sleep_timeout_minutes * 60UL * 1000UL : 0;
+    screen_timeout_ms = sleep_timeout_minutes ? millis() + sleep_timeout_minutes * 60UL * 1000UL : 0;
     sleep_display(false);
   }
 
@@ -1092,7 +1100,7 @@ void MarlinUI::init() {
         if (encoderPastThreshold || lcd_clicked) {
           reset_status_timeout(ms);
 
-          #if LCD_BACKLIGHT_TIMEOUT_MINS
+          #if HAS_BACKLIGHT_TIMEOUT
             refresh_backlight_timeout();
           #elif HAS_DISPLAY_SLEEP
             refresh_screen_timeout();
@@ -1202,8 +1210,7 @@ void MarlinUI::init() {
           return_to_status();
       #endif
 
-      #if LCD_BACKLIGHT_TIMEOUT_MINS
-
+      #if HAS_BACKLIGHT_TIMEOUT
         if (backlight_off_ms && ELAPSED(ms, backlight_off_ms)) {
           #ifdef NEOPIXEL_BKGD_INDEX_FIRST
             neo.set_background_off();
@@ -1214,7 +1221,7 @@ void MarlinUI::init() {
           backlight_off_ms = 0;
         }
       #elif HAS_DISPLAY_SLEEP
-        if (screen_timeout_millis && ELAPSED(ms, screen_timeout_millis))
+        if (screen_timeout_ms && ELAPSED(ms, screen_timeout_ms))
           sleep_display();
       #endif
 
diff --git a/Marlin/src/lcd/marlinui.h b/Marlin/src/lcd/marlinui.h
index 595b89b6e0..a463701f56 100644
--- a/Marlin/src/lcd/marlinui.h
+++ b/Marlin/src/lcd/marlinui.h
@@ -272,17 +272,25 @@ public:
     FORCE_INLINE static void refresh_brightness() { set_brightness(brightness); }
   #endif
 
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
+  #if HAS_BACKLIGHT_TIMEOUT
+    #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+      static uint8_t backlight_timeout_minutes;
+    #else
+      static constexpr uint8_t backlight_timeout_minutes = LCD_BACKLIGHT_TIMEOUT_MINS;
+    #endif
     static constexpr uint8_t backlight_timeout_min = 0;
     static constexpr uint8_t backlight_timeout_max = 99;
-    static uint8_t backlight_timeout_minutes;
     static millis_t backlight_off_ms;
     static void refresh_backlight_timeout();
   #elif HAS_DISPLAY_SLEEP
+    #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+      static uint8_t sleep_timeout_minutes;
+    #else
+      static constexpr uint8_t sleep_timeout_minutes = DISPLAY_SLEEP_MINUTES;
+    #endif
     static constexpr uint8_t sleep_timeout_min = 0;
     static constexpr uint8_t sleep_timeout_max = 99;
-    static uint8_t sleep_timeout_minutes;
-    static millis_t screen_timeout_millis;
+    static millis_t screen_timeout_ms;
     static void refresh_screen_timeout();
     static void sleep_display(const bool sleep=true);
   #endif
diff --git a/Marlin/src/lcd/menu/menu_configuration.cpp b/Marlin/src/lcd/menu/menu_configuration.cpp
index 52123d101b..7347f219e0 100644
--- a/Marlin/src/lcd/menu/menu_configuration.cpp
+++ b/Marlin/src/lcd/menu/menu_configuration.cpp
@@ -618,10 +618,12 @@ void menu_configuration() {
   //
   // Set display backlight / sleep timeout
   //
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
-    EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.backlight_timeout_minutes, ui.backlight_timeout_min, ui.backlight_timeout_max, ui.refresh_backlight_timeout);
-  #elif HAS_DISPLAY_SLEEP
-    EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.sleep_timeout_minutes, ui.sleep_timeout_min, ui.sleep_timeout_max, ui.refresh_screen_timeout);
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+    #if HAS_BACKLIGHT_TIMEOUT
+      EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.backlight_timeout_minutes, ui.backlight_timeout_min, ui.backlight_timeout_max, ui.refresh_backlight_timeout);
+    #elif HAS_DISPLAY_SLEEP
+      EDIT_ITEM(uint8, MSG_SCREEN_TIMEOUT, &ui.sleep_timeout_minutes, ui.sleep_timeout_min, ui.sleep_timeout_max, ui.refresh_screen_timeout);
+    #endif
   #endif
 
   #if ENABLED(FWRETRACT)
diff --git a/Marlin/src/lcd/tft/touch.cpp b/Marlin/src/lcd/tft/touch.cpp
index 3c0b21ba8f..d325355002 100644
--- a/Marlin/src/lcd/tft/touch.cpp
+++ b/Marlin/src/lcd/tft/touch.cpp
@@ -308,7 +308,7 @@ bool Touch::get_point(int16_t * const x, int16_t * const y) {
       next_touch_ms = millis() + 100;
       safe_delay(20);
     }
-    next_sleep_ms = millis() + SEC_TO_MS(ui.sleep_timeout_minutes * 60);
+    next_sleep_ms = millis() + MIN_TO_MS(ui.sleep_timeout_minutes);
   }
 
 #endif // HAS_TOUCH_SLEEP
diff --git a/Marlin/src/lcd/touch/touch_buttons.cpp b/Marlin/src/lcd/touch/touch_buttons.cpp
index 7d31b21c04..652a043714 100644
--- a/Marlin/src/lcd/touch/touch_buttons.cpp
+++ b/Marlin/src/lcd/touch/touch_buttons.cpp
@@ -147,7 +147,7 @@ uint8_t TouchButtons::read_buttons() {
         WRITE(TFT_BACKLIGHT_PIN, HIGH);
       #endif
     }
-    next_sleep_ms = millis() + SEC_TO_MS(ui.sleep_timeout_minutes * 60);
+    next_sleep_ms = millis() + MIN_TO_MS(ui.sleep_timeout_minutes);
   }
 
 #endif // HAS_TOUCH_SLEEP
diff --git a/Marlin/src/module/settings.cpp b/Marlin/src/module/settings.cpp
index f636b985e1..b99ae8ddcd 100644
--- a/Marlin/src/module/settings.cpp
+++ b/Marlin/src/module/settings.cpp
@@ -431,10 +431,12 @@ typedef struct SettingsDataStruct {
   //
   // Display Sleep
   //
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
-    uint8_t backlight_timeout_minutes;                  // M255 S
-  #elif HAS_DISPLAY_SLEEP
-    uint8_t sleep_timeout_minutes;                      // M255 S
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+    #if HAS_BACKLIGHT_TIMEOUT
+      uint8_t backlight_timeout_minutes;                // M255 S
+    #elif HAS_DISPLAY_SLEEP
+      uint8_t sleep_timeout_minutes;                    // M255 S
+    #endif
   #endif
 
   //
@@ -704,12 +706,8 @@ void MarlinSettings::postprocess() {
   // Moved as last update due to interference with Neopixel init
   TERN_(HAS_LCD_CONTRAST, ui.refresh_contrast());
   TERN_(HAS_LCD_BRIGHTNESS, ui.refresh_brightness());
-
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
-    ui.refresh_backlight_timeout();
-  #elif HAS_DISPLAY_SLEEP
-    ui.refresh_screen_timeout();
-  #endif
+  TERN_(HAS_BACKLIGHT_TIMEOUT, ui.refresh_backlight_timeout());
+  TERN_(HAS_DISPLAY_SLEEP, ui.refresh_screen_timeout());
 }
 
 #if ALL(PRINTCOUNTER, EEPROM_SETTINGS)
@@ -1249,10 +1247,12 @@ void MarlinSettings::postprocess() {
     //
     // LCD Backlight / Sleep Timeout
     //
-    #if LCD_BACKLIGHT_TIMEOUT_MINS
-      EEPROM_WRITE(ui.backlight_timeout_minutes);
-    #elif HAS_DISPLAY_SLEEP
-      EEPROM_WRITE(ui.sleep_timeout_minutes);
+    #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+      #if HAS_BACKLIGHT_TIMEOUT
+        EEPROM_WRITE(ui.backlight_timeout_minutes);
+      #elif HAS_DISPLAY_SLEEP
+        EEPROM_WRITE(ui.sleep_timeout_minutes);
+      #endif
     #endif
 
     //
@@ -2294,10 +2294,12 @@ void MarlinSettings::postprocess() {
       //
       // LCD Backlight / Sleep Timeout
       //
-      #if LCD_BACKLIGHT_TIMEOUT_MINS
-        EEPROM_READ(ui.backlight_timeout_minutes);
-      #elif HAS_DISPLAY_SLEEP
-        EEPROM_READ(ui.sleep_timeout_minutes);
+      #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+        #if HAS_BACKLIGHT_TIMEOUT
+          EEPROM_READ(ui.backlight_timeout_minutes);
+        #elif HAS_DISPLAY_SLEEP
+          EEPROM_READ(ui.sleep_timeout_minutes);
+        #endif
       #endif
 
       //
@@ -3451,10 +3453,12 @@ void MarlinSettings::reset() {
   //
   // LCD Backlight / Sleep Timeout
   //
-  #if LCD_BACKLIGHT_TIMEOUT_MINS
-    ui.backlight_timeout_minutes = LCD_BACKLIGHT_TIMEOUT_MINS;
-  #elif HAS_DISPLAY_SLEEP
-    ui.sleep_timeout_minutes = TERN(TOUCH_SCREEN, TOUCH_IDLE_SLEEP_MINS, DISPLAY_SLEEP_MINUTES);
+  #if ENABLED(EDITABLE_DISPLAY_TIMEOUT)
+    #if HAS_BACKLIGHT_TIMEOUT
+      ui.backlight_timeout_minutes = LCD_BACKLIGHT_TIMEOUT_MINS;
+    #elif HAS_DISPLAY_SLEEP
+      ui.sleep_timeout_minutes = TERN(TOUCH_SCREEN, TOUCH_IDLE_SLEEP_MINS, DISPLAY_SLEEP_MINUTES);
+    #endif
   #endif
 
   //
@@ -3827,7 +3831,7 @@ void MarlinSettings::reset() {
     //
     // Display Sleep
     //
-    TERN_(HAS_GCODE_M255, gcode.M255_report(forReplay));
+    TERN_(EDITABLE_DISPLAY_TIMEOUT, gcode.M255_report(forReplay));
 
     //
     // LCD Brightness
diff --git a/Marlin/src/module/temperature.h b/Marlin/src/module/temperature.h
index d174bfd11d..2acc1205b7 100644
--- a/Marlin/src/module/temperature.h
+++ b/Marlin/src/module/temperature.h
@@ -699,7 +699,7 @@ class Temperature {
 
       // Convert the given heater_id_t to idle array index
       static IdleIndex idle_index_for_id(const int8_t heater_id) {
-        TERN_(HAS_HEATED_BED, if (heater_id == H_BED) return IDLE_INDEX_BED);
+        OPTCODE(HAS_HEATED_BED, if (heater_id == H_BED) return IDLE_INDEX_BED)
         return (IdleIndex)_MAX(heater_id, 0);
       }
 
@@ -1052,7 +1052,7 @@ class Temperature {
       }
 
       // Start watching the Bed to make sure it's really heating up
-      static void start_watching_bed() { TERN_(WATCH_BED, watch_bed.restart(degBed(), degTargetBed())); }
+      static void start_watching_bed() { OPTCODE(WATCH_BED, watch_bed.restart(degBed(), degTargetBed())) }
 
       static void setTargetBed(const celsius_t celsius) {
         #if PREHEAT_TIME_BED_MS > 0
@@ -1108,7 +1108,7 @@ class Temperature {
         start_watching_chamber();
       }
       // Start watching the Chamber to make sure it's really heating up
-      static void start_watching_chamber() { TERN_(WATCH_CHAMBER, watch_chamber.restart(degChamber(), degTargetChamber())); }
+      static void start_watching_chamber() { OPTCODE(WATCH_CHAMBER, watch_chamber.restart(degChamber(), degTargetChamber())) }
     #endif
 
     #if HAS_TEMP_COOLER
@@ -1158,7 +1158,7 @@ class Temperature {
         start_watching_cooler();
       }
       // Start watching the Cooler to make sure it's really cooling down
-      static void start_watching_cooler() { TERN_(WATCH_COOLER, watch_cooler.restart(degCooler(), degTargetCooler())); }
+      static void start_watching_cooler() { OPTCODE(WATCH_COOLER, watch_cooler.restart(degCooler(), degTargetCooler())) }
     #endif
 
     /**
@@ -1391,9 +1391,9 @@ class Temperature {
 
       // Convert the given heater_id_t to runaway state array index
       static RunawayIndex runaway_index_for_id(const int8_t heater_id) {
-        TERN_(THERMAL_PROTECTION_CHAMBER, if (heater_id == H_CHAMBER) return RUNAWAY_IND_CHAMBER);
-        TERN_(THERMAL_PROTECTION_COOLER,  if (heater_id == H_COOLER)  return RUNAWAY_IND_COOLER);
-        TERN_(THERMAL_PROTECTION_BED,     if (heater_id == H_BED)     return RUNAWAY_IND_BED);
+        OPTCODE(THERMAL_PROTECTION_CHAMBER, if (heater_id == H_CHAMBER) return RUNAWAY_IND_CHAMBER)
+        OPTCODE(THERMAL_PROTECTION_COOLER,  if (heater_id == H_COOLER)  return RUNAWAY_IND_COOLER)
+        OPTCODE(THERMAL_PROTECTION_BED,     if (heater_id == H_BED)     return RUNAWAY_IND_BED)
         return (RunawayIndex)_MAX(heater_id, 0);
       }
 
diff --git a/ini/features.ini b/ini/features.ini
index 3e50b19bc0..ed755f9ac0 100644
--- a/ini/features.ini
+++ b/ini/features.ini
@@ -330,7 +330,7 @@ SET_PROGRESS_MANUALLY                  = build_src_filter=+<src/gcode/lcd/M73.cp
 HAS_STATUS_MESSAGE                     = build_src_filter=+<src/gcode/lcd/M117.cpp>
 HAS_PREHEAT                            = build_src_filter=+<src/gcode/lcd/M145.cpp>
 HAS_LCD_CONTRAST                       = build_src_filter=+<src/gcode/lcd/M250.cpp>
-HAS_GCODE_M255                         = build_src_filter=+<src/gcode/lcd/M255.cpp>
+EDITABLE_DISPLAY_TIMEOUT               = build_src_filter=+<src/gcode/lcd/M255.cpp>
 HAS_LCD_BRIGHTNESS                     = build_src_filter=+<src/gcode/lcd/M256.cpp>
 HAS_SOUND                              = build_src_filter=+<src/gcode/lcd/M300.cpp>
 HAS_MULTI_LANGUAGE                     = build_src_filter=+<src/gcode/lcd/M414.cpp>