Verb
To sleep beyond; as, to oversleep one's self or one's usual hour of rising.
To sleep too long.
Source: Webster's dictionaryI get between nine and ten hours of sleep. Go to bed at 8:30 and get up at 6:00 or 6:30 if I oversleep. Philip Johnson
If you want your dreams to come true, don't oversleep. Nicky Gumbel