Ambien and Lunesta are made specifically to help people suffering from insomnia, but there are still some differences between the two. Although both come in tablet form, Ambien exists in 5mg and 10mg while Lunesta exists in 1mg, 2mg, and 3mg. Of course, the 10mg of Ambien is meant for adults, and it must be taken once in a day.
In contrast, the 2mg and the 3mg of Lunesta are usually prescribed for adults. Although both are expected to be taken for about ten days, Ambien can only reduce insomnia cases for up to 35 days, whereas the desired effect of Lunesta can help to treat insomnia for up to six months.
Both produced similar results because you will definitely have a good sleep, usually for about 8 hours, but Lunesta gives more long-term benefits compared to Ambien. Also, both have similar side effects, such as drowsiness, headaches, etc.