i started Pamelor several months ago and worked up to 75mg at night. It was prescribed for Depression but had the added benefit of helping me sleep as i suffer from long term insomnia. It was wonderful but soon my body got used to it and one night i took a second 75 mg and i slept for 8 hours! It was heaven! I try not to do that every night but often i do take the 2nd one. Is this dangerous? I hope not as it helps my sleep like nothing else and i have tried everything!