| 100% | URSA | 4 | Bear that's up at night? |
| 68% | URSA | 4 | Bear that comes out at night? |
| 68% | FIREFLIES | 9 | Insects that light up at night |
| 58% | URSA | 4 | Bear that's looked up to |
| 57% | OWL | 3 | Bird that's active at night |
| 56% | OWLET | 5 | Baby that's up all night? |
| 53% | STAR | 4 | Light up at night? |
| 51% | NOCTURNAL | 9 | An animal that's active at night |
| 51% | REDSKY | 6 | Omen at night that's a "sailor's delight" (2 wds.) |
| 50% | INSOMNIA | 8 | Sleep disorder that keeps a person up at night |
| 50% | OWL | 3 | Bird that personifies one who stays up at night |
| 50% | APNEA | 5 | It might keep you up at night |
| 50% | INFANT | 6 | One might keep you up at night |
| 50% | SNORER | 6 | One keeping others up at night, perhaps |
| 50% | SNORES | 6 | Keeps a bedmate up at night, maybe |
| 50% | CIRCADIANRHYTHM | 15 | It may keep you up at night |
| 50% | BEDSLAT | 7 | What might keep you up at night? |
| 50% | DECAF | 5 | Unlikely to keep you up at night? |
| 50% | BEDPOSTS | 8 | They might keep sleepers up at night? |
| 49% | TENT | 4 | It's up all night at camp |
| 49% | JELLICLES | 9 | T S Eliot's cats that meet up at a ball |
| 48% | JETLAG | 6 | Problem that might keep a frequent flier up at night |
| 47% | STARGAZE | 8 | Look up at the night sky |
| 47% | OWLET | 5 | Baby that rarely sleeps at night |
| 47% | OWLS | 4 | Hooters that come out at night |
| 47% | OWL | 3 | Bird that usually hunts at night |
| 47% | OWLS | 4 | Night __; those up late |
| 47% | OWL | 3 | Flat-faced bird that's active at night |
| 46% | DECAFTEA | 8 | Warm beverage that won’t keep you up at night |
| 46% | OWL | 3 | *When you hear the ___ hooting at night, it's an indication that it's time to sleep! |