was on xanax xr 3mg 3x day for 3 years. now that i'm off i can't sleep. wondering if there might be a med solution

i was on 3mg of xanax xr 3x a day for about 3 years.  even since i stopped taking that medication i haven't been able to get a decent nights rest.   i will tend to spend about 12 hours in bed without getting really solid sleep simply because i need to be in bed that long.  is anyone aware of a psychiatrist prescribed medication that could be given to me that might be in order since after i stopped taking it i can't sleep ?

to clarify.  i was on 9mg of xanax xr a day for 3 years and have been off of them for 6 months.  at the same time of being off them they changed my antipsychotic which i have attributed to my messed up sleep.  i thought the antipsychotic completely rearranged my brain chemistry but i have come to suspect getting off the xanax xr is what has messed up my sleep for me.   I would really like to be able to sleep normally without medication though i'm willing to take meds to help my sleep.  i have taken ambien a long time ago and will need something much stronger to put me to sleep but only sleep for about 8 hours (opposed to 12 hours of not very good sleep and rest) and ideally be off of sleep medication eventually.

[ManicPanic247]

Try natural ways.....Chamomile Tea before bed, Valerian Root (Vitamins-theyre like 5.99$ at CVS) or why not switch doctors, obviously this one isnt helping you