Hey there :D I edited your title so people can search for it in future.
We don't allow "can I get high off this" threads I am afraid, check the guidelines in my signature. I'm not entirely sure what your first sentence means :D
Trazodone isn't really relaxing IMO, more just sedating.. it's an antidepressant but a pretty weak one and is sometimes prescribed for sedation/insomnia. Doxepin is another antidepressant (tricyclic and SNRI) with sedative properties and is also sometimes prescribed as a sleep aid. I don't know which one is more sedating. If you are wanting to be prescribed one of these then I would discuss it with your doctor..