Pre-Surgery Sleep Aids May Reduce Opioid Dependence, Study Suggests

A good night's sleep before surgery, potentially aided by over-the-counter melatonin or prescription sleep medications like Ambien, could significantly improve patient recovery and decrease the need for potent painkillers, according to a new analysis presented at the 2026 Anesthesiology meeting.

The research suggests that overlooking the importance of sleep in the nights leading up to a procedure may be a missed opportunity for enhancing patient outcomes. "Something as simple as improving sleep before a procedure can help patients have a more comfortable recovery while reducing the need for heavy painkillers and their potential risks," said senior author Dr. Sebastian Amaya.

The Link Between Sleep and Pain Management

Experts note that pre-surgical anxiety often leads to sleepless nights. This lack of sleep can heighten pain sensitivity, potentially prompting doctors to prescribe higher doses of painkillers, including opioids. Increased exposure to opioids raises the risk of dependence and addiction. "When opioids are provided too long or at higher doses than necessary, we do see complications and that includes the development of addiction," explained addiction medicine specialist Dr. Holly Geyer. "That’s the brain’s desire to continue receiving that opioid outside of the original reason it was prescribed."

Melatonin and Ambien in Surgical Recovery

The analysis reviewed 16 studies conducted between 2000 and 2025, involving patients undergoing various surgical procedures. The findings indicated that melatonin, when taken in doses ranging from 1 to 20 mg, was associated with reduced anxiety, pain, and inflammation. In some cases, particularly with abdominal surgery patients, melatonin use correlated with a 30% reduction in opioid use.

Patients typically took melatonin the night before surgery or 20 to 90 minutes before anesthesia. Melatonin, a naturally occurring hormone and a popular sleep aid, is considered a gentler option compared to prescription medications. Amaya noted that melatonin may be particularly beneficial for patients experiencing significant pre-operative anxiety, those at higher risk for respiratory complications, and older adults who might be more susceptible to cognitive side effects from traditional sedatives.

Smartwatch data from some studies suggested that melatonin helped patients resume normal sleep and daytime activity patterns post-surgery. Ambien was also found to be effective in improving sleep before surgery and was linked to less post-operative pain. One study showed that patients who took Ambien and had colorectal surgery required less opioid pain medication during and in the 24 hours following the procedure, along with lower levels of certain inflammatory markers.

Another study involving hip replacement patients who took Ambien reported less anxiety and depression, as well as a better recovery experience. Amaya suggested that while melatonin offers a milder approach, Ambien might be more suitable for individuals with pre-existing insomnia or significant sleep disturbances.