futon

noun3

1. •
   A thin mattress of tufted cotton or similar material, placed on a floor or on a raised, foldable frame as a bed.

   • The futon are easily aired, and may be carried about readily when moving. — 1904
2. •
   A specific kind of sofa-bed, with a fixed cushion that forms a mattress when folded down and a sofa when folded up.

   • I was 18 years old, sleeping on a futon, cooking on a George Foreman grill and showering at a friend's house every few days. — 2011
3. •
   A round cushion used for Zen meditation, traditionally made of woven bulrush leaves.

noun1

1. •
   Abbreviation of full text on the Net: the presence of the complete text of an academic paper on the Internet, seen as a potential biasing factor in which papers get cited most often.