I think all emets do this but I literally have a panic attack without my trusty water bottle in my handbag or by my bedside. Next to my bedside right now is 4 bottle of cold water, so if I wake up in the middle of the night I can drink it and feel fine.
I even take a bottle with me on a night out in my hand bag haha! lol. If I panic because of the alcohol etc, I just sip my water, and I feel better

I also play relaxation and meditation music at night through my pillow (yes, I have a freakin' pillow that plays music through it!!!! such a good emet investment!)