Parkinson's disease (PD) is a brain disorder that affects movement and can make it hard to sleep well. This study looks at how Deep Brain Stimulation (DBS) affects sleep in people with PD. DBS uses a small device to send electrical signals to certain parts of the brain to help manage PD symptoms. In this study, participants will undergo two surgeries: one to place the leads (wires) in the brain and another to connect the device that gives the signals. The study will have two parts:

• Participants will spend two nights in a research clinic for sleep recordings.
• They will have a special watch to track sleep at home for two weeks.
• Participants will have regular follow-ups at 6 and 12 months.

This study will help us learn more about sleep problems in PD and could lead to better treatments. You can join if you're 21 or older, have PD, and are planning to have DBS surgery. If you have other brain disorders or are pregnant, you cannot participate. Being part of the study won't change your medical care, and the study is conducted at the University of Minnesota.