Health - Effects of Benzodiazepines on Dreaming?

[truestbet]

I have been prescribed xanax and xanax XR for anxiety, and can't get past the nightmares from both of them. All benzo's do to me anymore if make me tired and give me nightmares. Very scary nightmares that freak me out and cause me to sleep longer. Usually the regular give me nightmares for 1-2nights and the xtended release gives me nightmares for 3-5 nights, i guess because of the longer half life. Do you think something with a shorter half life like ativan would be better, or something with a longer half life like valium would be better on the nightmares and tiredness. thanks in advance.