diff --git a/tests/components/binary_sensor/test_sleepiq.py b/tests/components/binary_sensor/test_sleepiq.py
index 1c270c36e29..d220578ca9d 100644
--- a/tests/components/binary_sensor/test_sleepiq.py
+++ b/tests/components/binary_sensor/test_sleepiq.py
@@ -1,4 +1,4 @@
-"""The tests for SleepIQ binary_sensor platform."""
+"""The tests for SleepIQ binary sensor platform."""
 import unittest
 from unittest.mock import MagicMock
 
@@ -32,7 +32,7 @@ class TestSleepIQBinarySensorSetup(unittest.TestCase):
 
     @requests_mock.Mocker()
     def test_setup(self, mock):
-        """Test for succesfully setting up the SleepIQ platform."""
+        """Test for successfully setting up the SleepIQ platform."""
         mock_responses(mock)
 
         sleepiq.setup_platform(self.hass,
diff --git a/tests/components/sensor/test_sleepiq.py b/tests/components/sensor/test_sleepiq.py
index 5802781ae75..2ec250f50c2 100644
--- a/tests/components/sensor/test_sleepiq.py
+++ b/tests/components/sensor/test_sleepiq.py
@@ -32,7 +32,7 @@ class TestSleepIQSensorSetup(unittest.TestCase):
 
     @requests_mock.Mocker()
     def test_setup(self, mock):
-        """Test for succesfully setting up the SleepIQ platform."""
+        """Test for successfully setting up the SleepIQ platform."""
         mock_responses(mock)
 
         sleepiq.setup_platform(self.hass,
diff --git a/tests/components/test_sleepiq.py b/tests/components/test_sleepiq.py
index ceccefde778..675673e1653 100644
--- a/tests/components/test_sleepiq.py
+++ b/tests/components/test_sleepiq.py
@@ -28,7 +28,7 @@ class TestSleepIQ(unittest.TestCase):
     """Tests the SleepIQ component."""
 
     def setUp(self):
-        """Initialize values for this testcase class."""
+        """Initialize values for this test case class."""
         self.hass = get_test_home_assistant()
         self.username = 'foo'
         self.password = 'bar'