This study is about helping people with Parkinson's Disease (PD) improve their sleep. Parkinson's Disease is a condition that affects movement, often leading to tremors and stiffness, and many people with PD also have trouble sleeping. This includes problems like insomnia (trouble falling or staying asleep) and sleep apnea (breathing stops and starts during sleep). Sleep is crucial for feeling good and healthy. The study will test a special kind of treatment called **Deep Brain Stimulation (DBS)**. This involves placing a device in the brain to help control symptoms. The researchers want to see if DBS can help people with PD sleep better. Participants will be monitored before and after surgery to check their sleep patterns using devices like watches and special sleep recordings called actigraphy and polysomnogram (PSG). **Key Points:** - The study includes 3 different 1-week treatments and will last over several months. - Participants must undergo surgery to implant the DBS device. - This study aims to help improve sleep and overall quality of life for people with PD. **Eligibility:** Participants must have Parkinson's Disease, be between 18-80 years old, and be willing to have follow-up care at the study site.