A sleeved blanket is a unisex body-length blanket with sleeves usually made of fleece or Vellux material. It is similar in design to a bathrobe that is meant to be worn backwards (i.e., with the opening in the back). The product has been marketed by various brands as the Snuggie, Snuggler, Doojo, Toasty Wrap, and Slanket, with varying sizes, colors and qualities of materials but similar basic design. The "Snuggie" brand itself also became a phenomenon of pop culture, outselling other brands and being referenced or imitated by many comedians or TV shows.

In late 2008 and early 2009 the "Snuggie" brand of sleeved blankets became a pop culture phenomenon, sometimes described humorously as a "cult".

The product became famous after a direct response commercial promoting the product was aired. It was featured on television programs like Today where cast and crew donned Snuggie blankets for a segment which was described as looking like a gospel choir. Others have described mass-snuggie wearing as looking like a Harry Potter convention. The Associated Press likened it to "...a monk's ensemble in fleece." and proclaimed it the "ultimate kitsch gift". The Snuggie initially sold singly for $14.95, and later in sets of two for $19.95. Another name for "Snuggie" is "a robe worn backwards."