I had a strange experience with Gabapentin the last couple of nights and would like to hear any comments or feedback from those who have taken it about what might have happened. I've been taking Clonazepam (.5mg) and Doxepin liquid (3.25mg) for several months and my doctor gave me a Rx for Gabapentin so that I could slowly taper off the Doxepin (which seems to be impairing my memory and making it harder to recover from a recent concussion/brain injury). I took 50mg of Gabapentin (1/2 capsule) with the other sleep meds Wed. night. It took a couple hours to fall asleep (usually takes 1 1/2 hours without the Gabapentin), but I slept deeply for 6 hours, woke up, took some glycine powder and fell back to sleep for a couple more hours. When I woke up, my brain felt noticeably better. It seemed like the Gabapentin had helped bring parts of my brain back "online" -- from some of the concussion symptoms and CFS brain symptoms, which was great. I took the same sleep meds last night (50mg of Gabapentin plus the other 2) and was awake all night. I took another 50mg of Gabapenting at 3 am, thinking that it might help me fall asleep, but I stayed awake for another several hours before falling asleep. I finally fell asleep around 6am and slept until 9am. So I only got a few hours of sleep, but it was deep sleep. Even though I didn't sleep much and feel very tired, my brain still seems to feel better from taking the Gabapentin -- like it's waking up parts of my brain that have been dormant for a while (from the CFS and more recently the brain injury). Does anyone know why I might have had two different reactions to the Gabapentin the last couple of nights? I'm afraid to take it again for fear of being up all night, but it seems to be helping my neural pathways or something. Has anyone else felt their brain function improve from taking Gabapentin? Is there another drug that works similarly to Gabapentin that might be worth trying to help with sleep? Thank you very much for your help!