Incubus, Jimmy Eat World, Boyce Avenue, Fever Ray, Coldplay, Kanye's 808's & Heartbreaks, and some Linkin Park actually Even though I like them a lot, Falling Up isn't on my chill soundtrack for some reason.
Recently it's been a lot of instrumental stuff like Do Make Say Think, Godspeed You! Black Emperor, Caspian, Mogwai, Bell Orchestre, God Is An Astronaut, etc. And Radiohead.
If anyone is looking for some nice instrumental music to chill to then I highly reccommend you get ahold of Colma by Buckethead. The album is amazing and some of the guitar work is astonishing...such a nice album to relax to.