Sorry I'm a little late. I just joined this community and there aren't too many posts yet. I hope you're still doing well!
That is huge getting the first good night of sleep after you haven't in a while. I can say from personal experience that it was a real struggle to get much sleep at all while I was detoxing from alcohol. Probably around 2 weeks before I started getting some good rest at night. Using alcohol as a sleep aid was one of my many excuses to poison myself throughout my twenties, so when I no longer had it, I also had to figure out how to get to sleep like a normal person. Thankfully, it was simple for me: just keep not drinking and sleep will come easily. Now-a-days I still don't get enough sleep, but its not because I'm up late getting wasted, its because I'm up late playing video games. I've been a night person since I was young though, so it really isn't much different from before I started drinking either.
I personally have been bringing my phone in the shower for years. It also gives me peace of mind when I'm doing outdoor activities around water.
I remember once I had my phone in my pocket at a party before they were water resistant and I got knocked into the pool. Would have been all set if that phone had water resistance.