Around 1 in 5 US adults are thought to struggle with sleep health, and for many of us, the search for rest eventually leads to medication. But new research suggests a commonly used sleep aid may come with alarming side effects. Quetiapine (sold as Seroquel) is an antipsychotic drug approved for conditions including schizophrenia and bipolar disorder , but studies have shown it can improve sleep quality, and it's often prescribed at lower doses as an 'off-label' treatment for insomnia. "There's