About 4 hours into your sleep the AVR microcontroller pulse LEDs that shine through your eyelids.

The analyst who walks away from the printer, leaving the red light flashing "paper jam.

We could see the lights on the distant boats twinkling.

The rub is that whereas there is little to confuse with a flicker of light in dark benthic recesses, any movement whatever will produce sounds.

Then you shine your little light,And twinkle,twinkle all the night.