used in compound words e.g. sleeping-bag, sleeping-car etc
dormant
Cases of word usage
1) in a state of sleeping (asleep)
2) a piece of furniture used for sleeping (bed)
3) a sleeping place in a train, ship etc (berth)
4) a room for sleeping with several beds, e.g. in a school or institution (dormitory)
5) a home, sleeping place, of a wild animal (lair)
6) a loose-fitting jacket and trousers for sleeping in (pajamas)
7) a piece of cloth used in pairs for sleeping between; a flat, thin piece (of a material); a wide expanse (of ice, snow, flame etc) (sheet)
8) to breathe roughly and noisily while sleeping (snore)
9) (in stories) a dead body that comes to life at night and sucks the blood of sleeping people (vampire)
10) a carriage for sleeping in a train (as on European railways) (wagon-lit)