Don't sleep with muse 2

Hello I would like to know if it is possible to have a signal with the headband muse 2 to avoid falling asleep?

I tried something: put the birds only with a volume booster, telling me that the sound of birds would wake me up when I fall asleep. I cut all the others sound.

Only the sound of birds is not enough to wake me up, do you know it’s a third-party application or a patch can replace the noise of birds by another noise more strident for example to be awake?

It’s pity that muse don’t done a difference between good meditation and sleeping.

thank you for your reply
Have a good day
Pierre