insomnia
"I have chronic insomnia from fibromyalgia and severe back pain. I've been taking the generic Zolpidem XR for years and it always seemed to work. For some reason, it stopped working for me about 3 months ago. I never had any side effect. No memory loss, sleepwalking or anything else and though always q restless sleeper causing me to wake every time I turn over, from the pain, I could always fall right back asleep and wake refreshed. Not sure what to take now since its lost its efficacy, but while it worked, it was fabulous. Trying Temazepam but it's like taking a placebo. No effect at all."