Historical clue formulations

• Snooze — 2025-04-23
• Bit of shut-eye — 2025-01-28
• Forty winks — 2024-08-02
• Short refresher — 2023-04-07
• Quick refresher — 2022-12-30
• Forty winks — 2022-07-10
• Means of a quick recharge — 2022-01-09
• Quick snooze — 2021-03-03
• Little shut-eye — 2020-01-02
• Siesta — 2017-04-14
• Refresher — 2014-09-14
• Catch a few Z's — 2014-02-05
• Quick refresher — 2013-09-17
• See 19-Across — 2012-07-07
• Forty winks — 2010-04-06
• Short break — 2006-07-16
• Refresher — 2006-05-14
• 40 winks — 2004-07-27
• Short time out — 2002-10-19
• 40 winks — 2001-06-06
• Take a break — 2000-04-09