In a medium bowl or jar, stir together oats, milk, chia seeds, and salt until well combined.
Swirl in peanut butter and jam, creating pretty ribbons but not fully mixing for a fun look.
Add honey or maple syrup if you like it sweeter.
Cover and refrigerate overnight (or at least 4 hours).
In the morning, give it a quick stir and enjoy straight from the jar or bowl.