diff --git a/esphome/components/switch/switch.h b/esphome/components/switch/switch.h
index e8018ed36f..b999296564 100644
--- a/esphome/components/switch/switch.h
+++ b/esphome/components/switch/switch.h
@@ -21,7 +21,7 @@ const int RESTORE_MODE_PERSISTENT_MASK = 0x02;
 const int RESTORE_MODE_INVERTED_MASK = 0x04;
 const int RESTORE_MODE_DISABLED_MASK = 0x08;
 
-enum SwitchRestoreMode {
+enum SwitchRestoreMode : uint8_t {
   SWITCH_ALWAYS_OFF = !RESTORE_MODE_ON_MASK,
   SWITCH_ALWAYS_ON = RESTORE_MODE_ON_MASK,
   SWITCH_RESTORE_DEFAULT_OFF = RESTORE_MODE_PERSISTENT_MASK,
@@ -49,12 +49,12 @@ class Switch : public EntityBase, public EntityBase_DeviceClass {
    */
   void publish_state(bool state);
 
-  /// The current reported state of the binary sensor.
-  bool state;
-
   /// Indicates whether or not state is to be retrieved from flash and how
   SwitchRestoreMode restore_mode{SWITCH_RESTORE_DEFAULT_OFF};
 
+  /// The current reported state of the binary sensor.
+  bool state;
+
   /** Turn this switch on. This is called by the front-end.
    *
    * For implementing switches, please override write_state.
@@ -123,10 +123,16 @@ class Switch : public EntityBase, public EntityBase_DeviceClass {
    */
   virtual void write_state(bool state) = 0;
 
-  CallbackManager<void(bool)> state_callback_{};
-  bool inverted_{false};
-  Deduplicator<bool> publish_dedup_;
+  // Pointer first (4 bytes)
   ESPPreferenceObject rtc_;
+
+  // CallbackManager (12 bytes on 32-bit - contains vector)
+  CallbackManager<void(bool)> state_callback_{};
+
+  // Small types grouped together
+  Deduplicator<bool> publish_dedup_;  // 2 bytes (bool has_value_ + bool last_value_)
+  bool inverted_{false};              // 1 byte
+  // Total: 3 bytes, 1 byte padding
 };
 
 #define LOG_SWITCH(prefix, type, obj) log_switch((TAG), (prefix), LOG_STR_LITERAL(type), (obj))