A new study published in Current Biology00922-9) has opened an exciting frontier in the treatment of post-traumatic stress disorder (PTSD) by leveraging the power of sleep. For the first time, researchers have shown that reactivating memories modified by therapy during sleep can lead to more significant brain activity related to memory processing, potentially reducing PTSD symptoms. Current treatments for PTSD, such as exposure-based therapies, are not always effective. Up to 50% of patients do not respond well to these treatments, and many find the process emotionally draining, leading to hig…