| 2025-07-27 | When doubled, "Sleep well" |
| 2024-08-08 | Ill-advised time for an ocean swim |
| 2023-12-31 | "What hath ___ to do with sleep?": Milton |
| 2022-07-12 | Dark time |
| 2022-07-10 | "Sweet dreams!" |
| 2022-01-14 | When repeated, call to someone going to bed |
| 2021-07-26 | When to stargaze |
| 2021-04-18 | It never occurs above the Arctic Circle during the summer solstice |
| 2019-02-06 | Prime-time time |
| 2017-10-13 | "Sweet dreams" |
| 2017-03-18 | With 9-Down, hit sitcom of the 1980s-'90s |
| 2016-03-28 | When one sees stars |
| 2015-05-27 | Busy time for bats |
| 2015-03-24 | Word that can precede either part of 17-, 25-, 38-, 54- and 63-Across |
| 2014-09-10 | Like all World Series games, now |
| 2014-07-10 | Popular Christmas carol |
| 2013-11-06 | Time for vampires |
| 2013-09-08 | Brief remark upon retiring |
| 2013-01-26 | See 26-Across |
| 2012-06-28 | Dark hours |
| 2012-05-09 | Comment to one who's retiring, informally |
| 2011-05-25 | Dracula's time |
| 2006-10-04 | Dusk to dawn |
| 2004-02-29 | Darkness |
| 2003-09-18 | Bedtime call, informally |
| 2003-01-12 | When most people retire |
| 2001-10-30 | Time for some shifts |
| 1997-11-18 | Dusk to dawn |
| 1995-12-29 | "S'long" |