He Huan Pi helps mood and emotions, it somehow relieves emotional pain, you just feel ok with everything and everyone when you take it with the right dosage, and it doesn't make you feel sleepy at all. I take 600 mg daily. There is no sleepiness in my case, I just feel that it is mildly relaxing, without having sedative effects, which is great. The taste is great also, I like it very much.
When I take it at night, it helps very much with sleep, it makes me sleep well, without interruptions. I take it with Lion's Mane and they both help with brain fog and memory in my opinion.