How to not fall asleep during my meditation practice?

If you're having trouble falling asleep, it's recommended you meditate in a sitting position.

If you're lying down, especially in your bedroom, you're very likely to doze off as your brain has already associated your bed to sleep.

If you still prefer meditating while lying down, you may want to consider using something like https://shaktimat.eu/collections/all. These spikes on the mat help you stay awake. They activate acupressure points, causing relaxation and the release of endorphins, the hormones of happiness. 

Also, if you're listening to binaural beats while meditating, it may be the best to avoid deeper brainwaves like theta or delta initially. Those are associated with sleep, resulting in just that - sleeping. As you get more advanced with your practice, you will be able to stay conscious even when listening to those deeper brainwaves.