If space is what you care about, then the PR-D7 is what you need since it can fit in small spaces without sacrificing functionality. Conveniently located controls make it easy to use even if you're just waking up with your eyes still blurry.
The radio can be set to automatically shut-off after 15 / 30 / 45 / 60 / 90 / 120 minutes, so you can relax and enjoy listening to your favorite music, talk show or news without leaving it on all night long.