I used to take Restoril. I took 60 mg at bedtime with my other meds including Xanax 3 mg. (both benzodiazepines)
I began waking in the middle of the night with weakness/loss of coordination in my legs making it impossible to walk. I also had expressive aphasia. I could understand language but could not talk. I could only moan. (My son was the only person who witnessed this and he later said he had not called 911 because he thought I would be embarrassed since I could only moan).
By morning the side effects were resolved. My pdoc finally did a neuro workup which was normal and later took me off the 60 mg. I have not had any more episodes.
I now take Restoril 15 mg once in a while and have not had similar side effects.