Valerian is a plant that is often used for its calming effects. It can be consumed as a tea, taken as a supplement, or used in essential oils. It is commonly used to help with sleep problems and anxiety. Full definition
For my patients, I sometimes recommend supplements to help improve sleep quality: either 300 - 600 mg of valerian root extract before bed (2 - 3 g soaked in hot water if dried) or 0.5 - 3.0 mg of melatonin. (saragottfriedmd.com)
I will have to take note of valerian root though. (missirina.com)
If you do hit that second wind and need to come down, you can lower your cortisol levels and get your mind in sleep mode with mediation, prayer, peaceful music, adaptogen herbs like Rhodiola, Ashwaganda and Siberian Ginseng as well as calming herbs and minerals like Valerian Root and Magnesium. (mindbodygreen.com)