layabouts,lizabouts

clock watcher - a worker preoccupied with the arrival of quitting time
dallier, dilly-dallier, dillydallier, lounger, mope - someone who wastes time
dawdler, laggard, lagger, trailer, poke, drone - someone who takes more time than necessary; someone who lags behind
daydreamer, woolgatherer - someone who indulges in idle or absentminded daydreaming
lazybones - a lazy person
lie-abed, slugabed - a person who stays in bed until a relatively late hour
sunbather - someone who basks in the sunshine in order to get a suntan
trifler - one who behaves lightly or not seriously
whittler - someone who whittles (usually as an idle pastime)