I got Jack Johnsons newest album - on my iPod Touch (If that makes me sound younger)
It is very mellow, I could see why the wife would suggest it's Assisted Living music. I like it tho.
Other mellow albums I picked up recently:
David Grays Greatest Hits
Feist (Female Vocalist chick)
Glen Hansard & Marketta Irglova (Awesomely relaxing)
James Blunt (Sad but true)
I listen to my iPod all day at work. If I am stressed I listen to mellow music. Then I have my music that helps me focus and work faster too. I love my iPod Touch - so much better than older gens.