Many individuals rely on background noise such as TV or podcasts to fall asleep, but experts warn that this habit can hinder sleep quality by masking underlying anxiety and causing frequent arousals. Sleep specialists recommend gradual reduction and addressing root causes like anxiety through therapy for healthier sleep habits.
Many people fall asleep with a television on, a podcast playing or a series set to autoplay, treating background sound as a comfort. But sleep specialists say this habit can become a trap: what feels soothing at first may mask anxiety, keep the brain partly alert and make it harder to sleep well in silence later on.
Psychologists describe the urge for constant background noise as a coping strategy. When the day finally quietens down, intrusive thoughts and rumination can become more noticeable, so a familiar voice or soundtrack can feel like an anchor. The problem is that the brain can learn to link that stimulus with sleep, creating a dependency that leaves people struggling in unfamiliar surroundings or when the sound is not available.
Sleep researchers also warn that the body does not simply switch off at night. According to sleep experts, the auditory system continues to process sound during sleep, which means television dialogue, music and sudden volume changes can trigger brief arousals without a person fully waking. Unlike steady white noise, TV audio is irregular and unpredictable, and that makes it more likely to fragment sleep. Light from screens can add to the disruption by interfering with melatonin, the hormone that helps regulate sleep.
Evidence cited by the Sleep Foundation and Sleep.com suggests that background noise is not harmless for everyone. Some people may benefit from masking outside sounds, but experts say sound machines are not necessary for most sleepers and can become a crutch if used too often. They also advise against sleeping with the television on because of the combination of light and variable sound. Reports from the Sleep Foundation have also shown that watching TV is a common bedtime ritual among U.S. adults, which helps explain why the habit is so widespread.
For people who already rely on it, sleep specialists recommend stepping away gradually rather than stopping all at once. A typical approach is to move from new programmes to familiar ones, then to audio without voices, then to low neutral sound before aiming for silence, ideally with a timer. At the same time, experts say the underlying issue, often anxiety or insomnia, should be treated directly, commonly with cognitive behavioural therapy rather than nightly distraction.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
