diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractChartFragment.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractChartFragment.java
index 3c49dbfa2..411c74293 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractChartFragment.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractChartFragment.java
@@ -712,6 +712,29 @@ public abstract class AbstractChartFragment extends AbstractGBFragment {
         return samples;
     }
 
+    protected List<? extends ActivitySample> getSamplesofSleep(DBHandler db, GBDevice device) {
+        int SLEEP_HOUR_LIMIT = 13;
+
+        int tsStart = getTSStart();
+        Calendar day = GregorianCalendar.getInstance();
+        day.setTimeInMillis(tsStart * 1000L);
+        day.set(Calendar.HOUR_OF_DAY, SLEEP_HOUR_LIMIT);
+        day.set(Calendar.MINUTE, 0);
+        day.set(Calendar.SECOND, 0);
+        tsStart = toTimestamp(day.getTime());
+
+        int tsEnd = getTSEnd();
+        day.setTimeInMillis(tsEnd* 1000L);
+        day.set(Calendar.HOUR_OF_DAY, SLEEP_HOUR_LIMIT);
+        day.set(Calendar.MINUTE, 0);
+        day.set(Calendar.SECOND, 0);
+        tsEnd = toTimestamp(day.getTime());
+
+        List<ActivitySample> samples = (List<ActivitySample>) getSamples(db, device, tsStart, tsEnd);
+        ensureStartAndEndSamples(samples, tsStart, tsEnd);
+        return samples;
+    }
+
     protected void ensureStartAndEndSamples(List<ActivitySample> samples, int tsStart, int tsEnd) {
         if (samples == null || samples.isEmpty()) {
             return;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
index 3d388c846..a4588850f 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java
@@ -44,6 +44,7 @@ import org.slf4j.LoggerFactory;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
+import java.util.Iterator;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
 
@@ -52,7 +53,6 @@ import nodomain.freeyourgadget.gadgetbridge.activities.HeartRateUtils;
 import nodomain.freeyourgadget.gadgetbridge.activities.charts.SleepAnalysis.SleepSession;
 import nodomain.freeyourgadget.gadgetbridge.database.DBHandler;
 import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice;
-import nodomain.freeyourgadget.gadgetbridge.model.ActivityAmount;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivityKind;
 import nodomain.freeyourgadget.gadgetbridge.model.ActivitySample;
 import nodomain.freeyourgadget.gadgetbridge.util.DateTimeUtils;
@@ -72,9 +72,20 @@ public class SleepChartFragment extends AbstractChartFragment {
 
     @Override
     protected ChartsData refreshInBackground(ChartsHost chartsHost, DBHandler db, GBDevice device) {
-        List<? extends ActivitySample> samples = getSamples(db, device);
+        List<? extends ActivitySample> samples = getSamplesofSleep(db, device);
 
         MySleepChartsData mySleepChartsData = refreshSleepAmounts(device, samples);
+        if (mySleepChartsData.sleepSessions.size()>0) {
+            long tstart = mySleepChartsData.sleepSessions.get(0).getSleepStart().getTime() / 1000;
+            long tend = mySleepChartsData.sleepSessions.get(mySleepChartsData.sleepSessions.size() - 1).getSleepEnd().getTime() / 1000;
+
+            for (Iterator<ActivitySample> iterator = (Iterator<ActivitySample>) samples.iterator(); iterator.hasNext(); ) {
+                ActivitySample sample = iterator.next();
+                if (sample.getTimestamp() < tstart || sample.getTimestamp() > tend) {
+                    iterator.remove();
+                }
+            }
+        }
         DefaultChartsData chartsData = refresh(device, samples);
 
         return new MyChartsData(mySleepChartsData, chartsData);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Constants.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Constants.java
index 7a717c18b..ef022af65 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Constants.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Constants.java
@@ -216,7 +216,7 @@ public final class MakibesHR3Constants {
     public static final byte ARG_SEND_NOTIFICATION_SOURCE_WEIBO = (byte) 0x13;
     public static final byte ARG_SEND_NOTIFICATION_SOURCE_KAKOTALK = (byte) 0x14;
     // ARG_SET_NOTIFICATION_SOURCE_*
-    // 02 (This is 00 and 01 during connection. I don't know what it does. Maybe clears notifications?)
+    // 02 (This is 00 and 01 during connection. Doesn't seem to do anything.)
     // ASCII
     public static final byte CMD_SEND_NOTIFICATION = (byte) 0x72;
 
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Coordinator.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Coordinator.java
index d17f535e1..ca023bc5c 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Coordinator.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/makibeshr3/MakibesHR3Coordinator.java
@@ -18,7 +18,9 @@ package nodomain.freeyourgadget.gadgetbridge.devices.makibeshr3;
 
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
+import java.util.ArrayList;
 import java.util.Calendar;
+import java.util.List;
 
 import android.app.Activity;
 import android.content.Context;
@@ -145,9 +147,15 @@ public class MakibesHR3Coordinator extends AbstractDeviceCoordinator {
     public DeviceType getSupportedType(GBDeviceCandidate candidate) {
         String name = candidate.getDevice().getName();
 
-        // TODO: Device discovery
-        if ((name != null) && name.equals("Y808")) {
-            return DeviceType.MAKIBESHR3;
+        List<String> deviceNames = new ArrayList<String>(){{
+            add("Y808"); // Chinese version
+            add("MAKIBES HR3"); // English version
+        }};
+
+        if (name != null) {
+            if (deviceNames.contains(name)) {
+                return DeviceType.MAKIBESHR3;
+            }
         }
 
         return DeviceType.UNKNOWN;
@@ -162,7 +170,7 @@ public class MakibesHR3Coordinator extends AbstractDeviceCoordinator {
 
     @Override
     public int getBondingStyle() {
-        return BONDING_STYLE_NONE;
+        return BONDING_STYLE_BOND;
     }
 
     @Override
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/makibeshr3/MakibesHR3DeviceSupport.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/makibeshr3/MakibesHR3DeviceSupport.java
index bc6830e25..cb78d9629 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/makibeshr3/MakibesHR3DeviceSupport.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/makibeshr3/MakibesHR3DeviceSupport.java
@@ -1,7 +1,3 @@
-// TODO: GB sometimes fails to connect until a connection with WearFit was made. This must be caused
-// TODO: by GB, not by Makibes hr3 support. Charging the watch, attempting to pair, delete and
-// TODO: re-add, scan for devices and go back, might also help. This needs further research.
-
 // TODO: All the commands that aren't supported by GB should be added to device specific settings.
 
 // TODO: It'd be cool if we could change the language. There's no official way to do so, but the