Sleep Healthy Using the Internet Mitigating Insomnia to Address Neurocognitive Difficulties (SHUTi MIND)

This trial is testing an internet-based cognitive behavioral therapy program for insomnia (called SHUTi) in older adults (65+) who also have mild cognitive impairment or early memory problems. The program, delivered through a website over several weeks, aims to improve sleep and potentially reduce the cognitive effects that poor sleep causes. **You may be eligible if...** - You are 65 or older - You live in the US and can read and speak English - You have trouble falling asleep or staying asleep, and it significantly affects your daily functioning - You have mild cognitive impairment (identified through study screening) - Your medications have been stable for at least 3 months - You have internet access and a device to use it **You may NOT be eligible if...** - You are already receiving treatment for insomnia (psychological) - You have Parkinson's disease or Huntington's disease - You are currently undergoing chemotherapy - You have chronic pain treated with opioids - You have untreated sleep apnea or other sleep disorders - You have a psychotic or bipolar disorder - You are at moderate-to-high risk of suicide - You have significant alcohol or drug abuse in the past year - You have an irregular or shift-work sleep schedule Talk to your doctor to see if this trial is right for you.