Charge the phone out of reach and finish a barcode or photo task in another room. If you still return to bed, add a check a few minutes later and give yourself something to do in between.
Your hand knows this move too well
The phone is six inches away. The alarm rings, your thumb moves, and the next thing you know it is an hour later. You may not have made a clear decision at all. Brief waking can happen while memory and judgment are still catching up.
Break the movement you have practiced. Put the phone where you must stand, and make dismissal happen in the bathroom or kitchen. Distance gives the brain a few extra seconds to become part of what the body is doing.
Don't leave an empty path back to bed
Finish the task beside light, clothes, a toothbrush, or another prepared action. If you tend to return anyway, schedule a wake check five or ten minutes later. The point isn't a harder puzzle; it is fewer quiet minutes beside the bed.
Test the volume, charging, permissions, and task while you are fully awake. A reliable morning is much easier to build at night than during the foggy minute when your hand is already reaching.
Common questions
Why do I not remember turning it off?
You may wake briefly enough to act without forming a strong memory. Sleep inertia can also slow judgment after waking.
Would a louder alarm fix it?
Not if you already hear and dismiss it. Moving the task and adding a follow-up check are usually more direct.
Sources & further reading
We use primary public-health guidance and original research where the topic makes factual claims about sleep. Sources are reviewed for relevance, not used as decoration.