diff --git a/.github/workflows/nightlyReports.yml b/.github/workflows/nightlyReports.yml
new file mode 100644
index 0000000000..5c2110197f
--- /dev/null
+++ b/.github/workflows/nightlyReports.yml
@@ -0,0 +1,43 @@
+name: Nightly reports
+
+on:
+  workflow_dispatch:
+  schedule:
+    # Every nights at 5
+    - cron: "0 5 * * *"
+
+# Enrich gradle.properties for CI/CD
+env:
+  GRADLE_OPTS: -Dorg.gradle.jvmargs="-Xmx3072m -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemoryError" -Dkotlin.daemon.jvm.options="-Xmx2560m" -Dkotlin.incremental=false
+  CI_GRADLE_ARG_PROPERTIES: --stacktrace -PpreDexEnable=false --max-workers 4
+
+jobs:
+  nightlyReports:
+    name: Create kover report artifact and upload sonar result.
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'vector-im/element-x-android' }}
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '17'
+
+      - name: ⚙️ Run unit & screenshot tests, generate kover report
+        run: ./gradlew koverMergedReport $CI_GRADLE_ARG_PROPERTIES -Pci-build=true
+
+      - name: ✅ Upload kover report
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: kover-results
+          path: |
+            **/build/reports/kover/merged
+
+      - name: 🔊 Publish results to Sonar
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          ORG_GRADLE_PROJECT_SONAR_LOGIN: ${{ secrets.SONAR_TOKEN }}
+        if: ${{ always() && env.SONAR_TOKEN != '' && env.ORG_GRADLE_PROJECT_SONAR_LOGIN != '' }}
+        run: ./gradlew sonar $CI_GRADLE_ARG_PROPERTIES
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 391c6c6b21..7b6e5eaf7d 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -68,13 +68,9 @@ jobs:
           path: tests/uitests/out/failures/
           retention-days: 5
 
-      - name: ✅ Upload kover report
+      - name: ✅ Upload kover report (disabled)
         if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: kover-results
-          path: |
-            **/build/reports/kover/merged
+        run: echo "This is now done only once a day, see nightlyReports.yml"
 
       - name: 🚫 Upload test results on error
         if: failure()
@@ -85,12 +81,8 @@ jobs:
             **/out/failures/
             **/build/reports/tests/*UnitTest/
 
-      - name: 🔊 Publish results to Sonar
-        env:
-          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
-          ORG_GRADLE_PROJECT_SONAR_LOGIN: ${{ secrets.SONAR_TOKEN }}
-        if: ${{ always() && env.SONAR_TOKEN != '' && env.ORG_GRADLE_PROJECT_SONAR_LOGIN != '' }}
-        run: ./gradlew sonar $CI_GRADLE_ARG_PROPERTIES
+      - name: 🔊 Publish results to Sonar (disabled)
+        run: echo "This is now done only once a day, see nightlyReports.yml"
 
       # https://github.com/codecov/codecov-action
       - name: ☂️ Upload coverage reports to codecov