A 10-question self-assessment measuring the quality of your sleep — how easily you fall asleep, stay asleep, and feel rested the next day.
Sleep quality is about more than just the number of hours you get — it is about how restorative your sleep actually is. Poor sleep quality affects mood, cognition, physical health, and longevity. This test is based on sleep disturbance indicators used in clinical sleep research, including the Pittsburgh Sleep Quality Index criteria. It measures common dimensions of sleep quality: sleep onset, maintenance, depth, and daytime function. If your score suggests poor sleep, it may be worth discussing it with a healthcare provider.
This test is for educational and informational purposes only. It is not a diagnostic tool and should not replace professional medical advice. If you are experiencing distress, please consult a licensed healthcare provider.
Sleep is when the brain consolidates memories, clears metabolic waste, restores attentional resources, and regulates mood. Insufficient or poor-quality sleep doesn't just cause tiredness — it impairs every major cognitive function: memory, concentration, emotional regulation, decision-making, and reaction time.
Most adults need 7-9 hours of sleep per night. Chronic sleep restriction (consistently getting 5-6 hours) accumulates a sleep debt that cannot be fully recovered in a single night. Research shows that cognitively, people who regularly sleep 6 hours perform comparably to people who have been awake for 24 hours.
Sleep quality is as important as duration. Frequent waking, light sleep, or conditions like sleep apnoea can mean you spend 8 hours in bed but get minimal restorative sleep. Persistent fatigue despite adequate sleep time is worth discussing with a GP.