LIGHTSOUT

Bedtime command (6,3)

Solution has appeared in 2 crosswords (1 across and 1 down):

• Quick crossword No 15,633 — 2020-06-14 23:00:03
  15A: Go to sleep! (6,3)
• Quick crossword No 15,508 — 2020-01-21 00:00:40
  12D: Bedtime command (6,3)