I am currently used HIGH interrupt as when the button is press then wake up. "attachInterrupt(1, wakeUpNow, HIGH);"
Is the sensors other component still consuming the power even when arduino sleep?
Also, as illustrated on the page I linked to, you can turn off internal functions like the ADC converter, to save power while asleep.
How can I make one that produce LOW when it is press to be replace with this one ??
What is the battery's voltage?