AhaBulbStuff Everyone Should Know
AhaBulb: Stuff Everyone Should Know · ahabulb.com/screens-before-bed

When should you turn off screens before bed?

At least 30 minutes before bedtime.

Start playing free

  1. At least 30 minutes before ✔
  2. Right when you feel sleepy
  3. Only if you can't fall asleep

Why: CDC lists turning off electronic devices at least 30 minutes before bed as a habit that helps sleep. A fixed bedtime helps too.

Huh, didn't know that: A cool, quiet, relaxing bedroom is another CDC sleep habit.

The dad joke
Why was the phone bad at sleeping? It kept getting notifications.
Like this card?
Play the game

References

Answer: At least 30 minutes before. CDC lists turning off electronic devices at least 30 minutes before bed as a habit that helps sleep. A fixed bedtime helps too.

  1. CDC: About Sleep www.cdc.gov/sleep/about/index.html
    Turn off electronic devices at least 30 minutes before bedtime.
    Checked 2026-10-09.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game

Health BasicsHow much sleep does a healthy adult need each night?Health BasicsYour eyes feel tired after a long time on a screen. What's the eye doctors' break rule?Health BasicsDoes the blue light from phones and computers damage your eyes?

That's stuff everyone should know.