I don't believe there's a direct translation. In english or at least in Australia we don't highlight staying home or 宅ing per se, but instead use other descriptions. Eg, 宅男 typically stay home and play video games, in the west they're refered to mostly as "nerds" (which includes myself!) this can be both positive and negative depending on how you use it, but it is mostly a negative term. For girls, you could say "She stays home all the time and does ______". Since there is no direct translation, you can be descriptive instead. Hope this helps.

Is it same as the cabin fever?

homebody

Otaku. reference:http://en.wikipedia.org/wiki/Otaku

宅男 = male addicted to computers, computer games, adult cartoons etc (2000s Taiwan slang, derived from Japanese otaku 御宅男 house male) / fan of computer games / by extension, nerd or geek As you can see, it derives from the Japanese.