Sometimes, I have issues sleeping - so I listen to podcasts or audiobooks on a iPod Touch. The sound is clear and concise, but those ear buds are irritating, impossible to use while sleeping, and constantly fall out of my ears. I'm looking for an earbud/IEM that's (1) relatively cheap (under $30), (2) has well-defined, non-boomy sound (my Apple earbuds with mic sound fine, but can hurt with continued use), and (3) as stated, I want a really comfortable fit. All the reviews I've found on Amazon seem alike, so I'd be obliged if you could list your top picks. Thanks!