what AI says
"Apple Watch does not have a single, universal "night mode," but depending on what you are trying to do, there are three built-in features to manage the screen in the dark:
1. Nightstand Mode (While Charging)
Turns your Apple Watch into a bedside alarm clock while it is charging on its side. [1, 2]
- What it does: Displays a large green or red time/alarm readout that turns off until you tap the watch or gently nudge your nightstand.
- How to turn it on: Open the Settings app on your Apple Watch, tap General, then tap Nightstand Mode and toggle it on (or via the Apple Watch app on your iPhone under My Watch > General > Nightstand Mode). [1, 2, 3]
2. Red Night Mode (Apple Watch Ultra Only)
Automatically shifts the display to a red tint to preserve your night vision in the dark. [1, 2]
- What it does: Uses the ambient light sensor to turn the Wayfinder or Modular Ultra watch faces red after dark.
- How to turn it on/off: Touch and hold the watch face, tap Edit, swipe to Night Mode, and select Auto, On, or Off (or adjust it in the Apple Watch app on your iPhone). [1, 2, 3]
3. Sleep Focus & Theater Mode (While Wearing to Sleep)
Keeps the screen dark so it doesn't disturb you or your partner at night. [1, 2]
- Sleep Focus: Automatically simplifies and dims your watch screen when your scheduled bedtime arrives. Enable it via Settings > Focus > Sleep on your iPhone or through the Control Center on your watch. [1, 2, 3, 4]
- Theater Mode: Instantly turns off the screen and silences alerts until you press a button or the Digital Crown. Swipe up on your watch face to open the Control Center and tap the two theater masks icon. [1, 2, 3]
"
more Why is there no Night Mode option on my A… - Apple Community
even more night mode on apple watch - Google-
you don't need to be sorry, you don't need to delete your post, you may however need to lower your expectations in terms of apple reaching out to you