Security Blanket — With Sleeves!

From theslanket.com

The marketing hook for the suddenly-everywhere Snuggie is that its form-fitting coziness helps you keep down your home-heating bills. (O.K., that’s only one hook: the ads also claim that ordinary blankets are too cumbersome and may, tragically, entrap your hands.)
There are a host of other blankets-with-sleeves (a.k.a. “robes”) on the market, from the “original” Freedom Blanket to the socially conscious but awkwardly named Slanket. One upscale version, the Nuddle, even includes a pocket in front for your hands and another at the bottom for your feet (the Nuddle is so upscale that it doesn’t have sleeves, it has slats).
Niche-marketed blankets didn’t catch on last winter, when home heating costs skyrocketed with rising fuel prices.
So why now?