How can I find low-cost soundproofing/construction?

I have a friend in her 80's -- call her Linda-- who lives in a high rise condominium and is suffering serious losses of sleep because her upstairs neighbor watches television and plays music from midnight to 4 a.m.

My friend can't function well during the day because she is sleep deprived. Her apartment is a studio, so it's impossible for her to go elsewhere in her unit to escape the noise.

She's tried all of the reasonable solutions such as speaking with the neighbor, building management and legal help. None of these has made a difference, and the noise keeps her awake most every night.

She bought custom-made earplugs, but these don't do much good.

She doesn't want to move because this has been her home for 30 years. It probably will be the last place she'll live in on her own.

I'm thinking the only way to help her is to have her apartment (or a part of it) soundproofed. As some of you know, sound travels too well in older highrise buildings -- noise easily bounces off the steel and concrete walls and floor.

Soundproofing, though, will probably be more expensive than Linda can afford. Do you know of an inexpensive way she might get this done?

Would Habitat for Humanity help in a case like this? Or would it make sense to put out a call for help on craigslist?

Any other ideas about how to get low-cost construction/soundproofing help?

Thanks in advance for all of your ideas.