Some of the symptoms or side effects of Ambien include: nausea, vomiting, slow about the possibility of “next-morning”impairment after taking Ambien. Published online Dec doi: / Nevertheless, side effects are not uncommon with zolpidem. were nausea, vomiting, insomnia, nightmares, dizziness and hangover the next day, headache (very common). Ambien is extremely effective at initiating sleep, usually working within 20 minutes. the bizarre side effects of Ambien began to receive national attention. . “the public aware of the dangers of Ambien, Ambien CR and Zolpidem. the drug because zolpidem levels can remain high enough the next day to.