Inclusion Criteria:

• Participants with a Confirmed diagnosis of moderate-to-severe plaque psoriasis with or without joint involvement according to the treating physician's clinical judgment, prior to time of enrollment.
• Treatment with risankizumab is indicated per summary of product characteristics (SmPC) or local label and local prescribing/treatment guidelines.
• Decision to treat with risankizumab is made prior to and independently of study participation.

Exclusion Criteria:

• History of a sleep disorder diagnosis which the patient is currently being treated for.
• Current or recent (within the last 30 days) participation in an interventional clinical trial or an observational study.
• Currently receiving other biologic treatments and/or small molecules including Janus kinase (JAK) inhibitors, tyrosine kinase 2 (TYK2) inhibitors, and phosphodiesterase 4 (PDE4) inhibitors for any reason.