I stopped using Qualia because I don't sleep well and it caused a unique vibration that kept me awake all night (for weeks). I was excited to try Qualia Night, but after 4 days, even with low doses, it created the same sensation and kept me from sleeping. While Qualia helped cognition, I could not continue using it. Qualia night had no noticeable impact on cognition and did not allow me to sleep. I cannot recommend either product.