| Answer | Crossword Clue |
|---|---|
| NEON | It lights up the night |
| STARSHELL | It lights up a battlefield at night. |
| JULYFOURTH | Night the sky lights up |
| NEONGAS | It lights up Las Vegas |
| ARGON | It lights up when it's excited |
| INSOMNIA | It keeps one up at night |
| APNEA | It might keep you up at night |
| OWL | One who whoops it up at night? |
| OWL | It may whoop it up at night |
| COLIC | It may keep new parents up at night |
