Waklert's armodafinil can help you stay awake for 12 to 15 hours after a dose, but it's not meant to keep you up for several days. Although some users may remain awake for 24 to 36 hours after taking the drug repeatedly, this is not advised and is dangerous. The brain and body depend on sleep, and extended periods of awake time can cause mood swings, hallucinations, and poor judgment. It's important to take Waklert exactly as directed and never to overdo it.