If you’re looking to stay alert during the day without messing up your sleep at night, several caffeine-free or low-caffeine alternatives can give you a natural energy boost without the jitters or insomnia. Here are some of the most effective options: 1. Herbal Adaptogens Adaptogens help your body adapt to stress and may improve mental clarity and energy levels without stimulants: – Ashwagandha – May reduce fatigue and support stress resilience. –...