Accidents happen, and getting pee out of a mattress can be straightforward with the right approach. Start by blotting the area with a clean cloth to absorb as much moisture as possible. Then, apply a mixture of baking soda and white vinegar. This helps to neutralize odors and break down stains. Let it sit, then vacuum it up. Have you had this problem before, or is it a recent issue? There's no judgment here—I can offer other tips if needed!