I never understood the logic of watching TV, reading, or similar distractions in bed. When I go to bed, it's for one of two things. If I want to watch TV, I have a fine chair to sit in.
Will it really matter if you have the earphones on while awake or are asleep when someone breaks in? If they're furtive enough, you won't wake up anyway.
Situational awareness is learned over a period of time. The logical approach to my home's entrance is across a wood deck just outside the my bedroom window. I have 60% hearing loss but am often awakened by cats or raccoons walking on the deck. I seriously doubt that anyone would be able to approach w/o waking me even in winter with the window closed. Rattletraps made with empty aluminum cans cover the less likely approaches. Easy, cheap, and nonthreatening.