diff --git a/app/src/main/java/com/example/medilightv2android/managers/ImuPostureClassifier.kt b/app/src/main/java/com/example/medilightv2android/managers/ImuPostureClassifier.kt
index a7b7f31..cbf40e4 100644
--- a/app/src/main/java/com/example/medilightv2android/managers/ImuPostureClassifier.kt
+++ b/app/src/main/java/com/example/medilightv2android/managers/ImuPostureClassifier.kt
@@ -69,7 +69,10 @@ object ImuPostureClassifier {
         val absPitch = abs(pitch)
         val thr = GreenZoneConstants.pitchLyingThreshold
 
-        val posture = if (absPitch > thr) Posture.LYING else Posture.NON_LYING
+        // Pitch 의미: AX 가 중력과 일치할수록 큰 값 (≈90°), AZ 가 중력과 일치하면 작은 값 (≈0°).
+        // 사용자 직관: 센서 평평하게 둠 (AZ up) = LYING, 세움 (AX up) = NON_LYING (upright).
+        // → 작은 pitch → LYING, 큰 pitch → NON_LYING
+        val posture = if (absPitch <= thr) Posture.LYING else Posture.NON_LYING
         return Result(posture, pitch, accMag, gyroMag, "ok")
     }
 }
diff --git a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
index c937c49..a9eb0a3 100644
--- a/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
+++ b/app/src/main/java/com/example/medilightv2android/ui/views/monitoring/PiezoMonitoringView.kt
@@ -1791,7 +1791,7 @@ fun PiezoMonitoringView(appState: AppState) {
                             Spacer(modifier = Modifier.width(8.dp))
                             Text("${pitchThrVal.toInt()}°", fontSize = 13.sp, fontWeight = FontWeight.Bold, color = MlPrimary)
                             Spacer(modifier = Modifier.weight(1f))
-                            Text("|pitch|>${pitchThrVal.toInt()}°→Lying", fontSize = 11.sp, color = MlSecondaryText)
+                            Text("|pitch|≤${pitchThrVal.toInt()}°→Lying", fontSize = 11.sp, color = MlSecondaryText)
                         }
                         Slider(
                             value = pitchThrVal,
@@ -1800,6 +1800,29 @@ fun PiezoMonitoringView(appState: AppState) {
                             steps = 11,
                             colors = SliderDefaults.colors(thumbColor = MlPrimary, activeTrackColor = MlPrimary)
                         )
+
+                        HorizontalDivider(modifier = Modifier.padding(vertical = dividerPadding))
+
+                        // Wakeup Alarm toggle (Personalization 페이지 와 동일 prefs)
+                        var wakeupEnabled by remember {
+                            mutableStateOf(com.example.medilightv2android.services.WakeupAlarmPrefs.isEnabled(context))
+                        }
+                        Row(verticalAlignment = Alignment.CenterVertically,
+                            modifier = Modifier.fillMaxWidth()) {
+                            Column(modifier = Modifier.weight(1f)) {
+                                Text("기상 알람", fontSize = labelSize, fontWeight = FontWeight.SemiBold)
+                                Text("일어남 감지 시 빨간 팝업",
+                                    fontSize = 11.sp, color = MlSecondaryText)
+                            }
+                            Switch(
+                                checked = wakeupEnabled,
+                                onCheckedChange = {
+                                    wakeupEnabled = it
+                                    com.example.medilightv2android.services.WakeupAlarmPrefs.setEnabled(context, it)
+                                },
+                                colors = SwitchDefaults.colors(checkedTrackColor = Color(0xFFD32F2F))
+                            )
+                        }
                     }
 
                     HorizontalDivider(modifier = Modifier.padding(vertical = dividerPadding))