sleep until condition is true in ruby

Question

Is there any better way in Ruby to sleep until some condition is true ?

loop do 
  sleep(1)
  if ready_to_go
    break
  end
end

Answer 1

def sleep_until(time)
  time.times do
    break if block_given? && yield
    sleep(1)
  end
end

Usage:

sleep_until(18){till_i_die}