system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do normal, rational adults always think that snoozing an alarm for 5 minutes will make any difference at all?
gpt
That isn't particularly true because.. Sleep is comprised of 3 NREM stages and one REM stage. Every stage lasts approximately 5-15 minutes long and the NREM stages become shorter the longer you've been asleep while the REM cycle will last longer. When you interrupt a stage, either from the alarm clock or otherwise, you will fall back asleep and resume that stage. This explains why people will say they go back into nightmares once they have woken up and fallen back asleep again. Falling back asleep for 5 more minutes could easily complete a stage thus making them feel less tired.