diff --git a/lib/widgets/mood_form.dart b/lib/widgets/mood_form.dart
index e7e425b..78c3e43 100644
--- a/lib/widgets/mood_form.dart
+++ b/lib/widgets/mood_form.dart
@@ -14,7 +14,7 @@ class MoodForm extends StatefulWidget {
 
 class _MoodFormState extends State<MoodForm> {
   final GlobalKey<FormState> _moodFormKey = GlobalKey<FormState>();
-  MySlider slider = const MySlider();
+  MySlider slider = MySlider();
   String _textInput = "";
 
   void submitForm() {
diff --git a/lib/widgets/popup_for_start_and_stop.dart b/lib/widgets/popup_for_start_and_stop.dart
index 097e587..84f5383 100644
--- a/lib/widgets/popup_for_start_and_stop.dart
+++ b/lib/widgets/popup_for_start_and_stop.dart
@@ -13,7 +13,7 @@ class TimerStartStopPopup extends StatefulWidget {
 }
 
 class TimerStartStopPopupState extends State<TimerStartStopPopup> {
-  final MySlider slider = const MySlider();
+  final MySlider slider = MySlider();
 
   void submitForm(BuildContext context) {
     Navigator.of(context).pop();
@@ -29,8 +29,8 @@ class TimerStartStopPopupState extends State<TimerStartStopPopup> {
         mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          const Padding(
-            padding: EdgeInsets.only(top: 8),
+          Padding(
+            padding: const EdgeInsets.only(top: 8),
             child: MySlider(labelText: 'Motivation'),
           ),
           const SizedBox(height: 16),
diff --git a/lib/widgets/sleep_form.dart b/lib/widgets/sleep_form.dart
index 32aab4d..5f8b9bd 100644
--- a/lib/widgets/sleep_form.dart
+++ b/lib/widgets/sleep_form.dart
@@ -14,7 +14,7 @@ class SleepForm extends StatefulWidget {
 
 class _SleepFormState extends State<SleepForm> {
   final GlobalKey<FormState> _sleepFormKey = GlobalKey<FormState>();
-  MySlider slider = const MySlider();
+  MySlider slider = MySlider();
   String _textInput = "";
   TimePicker sleepTimePicker = TimePicker(
     const TimeOfDay(hour: 22, minute: 00),
diff --git a/lib/widgets/slider.dart b/lib/widgets/slider.dart
index 02f3fb8..0102014 100644
--- a/lib/widgets/slider.dart
+++ b/lib/widgets/slider.dart
@@ -1,10 +1,9 @@
 import 'package:flutter/material.dart';
 
-double _currentSliderValue = 50;
-
 class MySlider extends StatefulWidget {
+  double _currentSliderValue = 50;
   final String _labelText;
-  const MySlider({Key? key, String labelText = 'Stimmung'})
+  MySlider({Key? key, String labelText = 'Stimmung'})
       : _labelText = labelText,
         super(key: key);
 
@@ -23,7 +22,7 @@ class SliderState extends State<MySlider> {
   @override
   void initState() {
     super.initState();
-    _textFieldController.text = _currentSliderValue.toStringAsFixed(0);
+    _textFieldController.text = widget._currentSliderValue.toStringAsFixed(0);
   }
 
   @override
@@ -38,15 +37,16 @@ class SliderState extends State<MySlider> {
             children: [
               Expanded(
                 child: Slider(
-                  value: _currentSliderValue,
+                  value: widget._currentSliderValue,
                   min: 1,
                   max: 100,
                   divisions: 99,
-                  label: _currentSliderValue.round().toString(),
+                  label: widget._currentSliderValue.round().toString(),
                   onChanged: (double value) {
                     setState(() {
-                      _currentSliderValue = value;
-                      _textFieldController.text = _currentSliderValue.toStringAsFixed(0);
+                      widget._currentSliderValue = value;
+                      _textFieldController.text =
+                          widget._currentSliderValue.toStringAsFixed(0);
                       _errorText = null;
                     });
                   },
@@ -65,7 +65,7 @@ class SliderState extends State<MySlider> {
                   onChanged: (text) {
                     if (text.isEmpty) {
                       setState(() {
-                        _currentSliderValue = 1;
+                        widget._currentSliderValue = 1;
                         _textFieldController.clear();
                         _errorText = null;
                       });
@@ -80,7 +80,7 @@ class SliderState extends State<MySlider> {
                       return;
                     }
                     setState(() {
-                      _currentSliderValue = value;
+                      widget._currentSliderValue = value;
                       _errorText = null;
                     });
                   },