diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PebbleHealthSampleProvider.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PebbleHealthSampleProvider.java
index 57de0eae..1623679f 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PebbleHealthSampleProvider.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PebbleHealthSampleProvider.java
@@ -51,7 +51,7 @@ public class PebbleHealthSampleProvider extends AbstractSampleProvider<PebbleHea
 
         for (PebbleHealthActivityOverlay overlay : overlayRecords) {
             for (PebbleHealthActivitySample sample : samples) {
-                if (overlay.getTimestampFrom() <= sample.getTimestamp() && sample.getTimestamp() <= overlay.getTimestampTo()) {
+                if (overlay.getTimestampFrom() <= sample.getTimestamp() && sample.getTimestamp() < overlay.getTimestampTo()) {
                     // patch in the raw kind
                     sample.setRawKind(overlay.getRawKind());
                 }
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthOverlayData.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthOverlayData.java
index e693895b..0c696335 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthOverlayData.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthOverlayData.java
@@ -72,7 +72,7 @@ class DatalogSessionHealthOverlayData extends DatalogSessionPebbleHealth {
 
             List<PebbleHealthActivityOverlay> overlayList = new ArrayList<>();
             for (OverlayRecord overlayRecord : overlayRecords) {
-                overlayList.add(new PebbleHealthActivityOverlay(overlayRecord.timestampStart, overlayRecord.timestampStart + overlayRecord.durationSeconds - 1, deviceId, userId, overlayRecord.type)); //TODO: consider if "-1" is what we really want
+                overlayList.add(new PebbleHealthActivityOverlay(overlayRecord.timestampStart, overlayRecord.timestampStart + overlayRecord.durationSeconds, deviceId, userId, overlayRecord.type)); //TODO: consider if "-1" is what we really want
             }
             overlayDao.insertOrReplaceInTx(overlayList);
         } catch (Exception ex) {
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthSleep.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthSleep.java
index e57795b0..e1ff8d9f 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthSleep.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/pebble/DatalogSessionHealthSleep.java
@@ -71,7 +71,7 @@ class DatalogSessionHealthSleep extends DatalogSessionPebbleHealth {
 
             List<PebbleHealthActivityOverlay> overlayList = new ArrayList<>();
             for (SleepRecord sleepRecord : sleepRecords) {
-                overlayList.add(new PebbleHealthActivityOverlay(sleepRecord.bedTimeStart, sleepRecord.bedTimeEnd - 1, deviceId, userId, sleepRecord.type)); //TODO: consider if "-1" is what we really want
+                overlayList.add(new PebbleHealthActivityOverlay(sleepRecord.bedTimeStart, sleepRecord.bedTimeEnd, deviceId, userId, sleepRecord.type)); //TODO: consider if "-1" is what we really want
             }
             overlayDao.insertOrReplaceInTx(overlayList);
         } catch (Exception ex) {