Different meditation methods can help in different ways.
If it's anxiety or a feeling of adrenaline then loving-kindness meditation where you focus on others will help you stop ruminating on those types of self-focused thoughts that can keep you up.
My favorite is simple body scanning, because I'll notice I'm holding tension in my face, or my body, and meditating at night helps me release that from the day.
And it's a good time to check in with how I'm really feeling not just how I think I'm feeling. As often I think I'm fine, then I will do body scanning and realize I was far more tense than I thought.
Another easy one is breath-focused meditation, as the simple shift of your nervous system can move you from an active, to passive/restorative mode deliberately if it isn't happening naturally.