Oh, I'm sorry that your husband's not well. I hope that he's already bouncing back. I hope you enjoy your trip!
I'm late to this party, but the title struck a chord with me and I had to read the whole discussion this morning.
no matter what I do or how prepared I am I never get a good night's
sleep before a trip. My brain just won't go to sleep
^^That's me, although it's not that I 'never' get a good night's sleep, but I usually don't. I really don't get the horrible what-if pre-trip dreads, but my body must be flooded with adrenaline or a stress hormone or something, the night before a trip. I usually sleep very little, and not well. It's not so bad with domestic trips, but it's the norm for trips out of the country. Even when I'm going somewhere I've been before. I don't have any magic cures for it, but I usually pack everything possible a few days ahead, use lists, and generally try to have as few loose ends as possible left on the day and night before the trip.
I don't worry so much about my digital life because I use a password manager. I would hate to live without it. I pay a few bucks a year for the premium subscription. It's cloud-based and works across all my computers and mobile devices. I do keep written notes of a few important passwords.
I also have a personal account with Lookout for my phone and iPad. That service can find the devices if lost/stolen. Even if the device isn't recoverable it can be wiped remotely at least in some circumstances if not all. It's come in handy many times to find my phone. Once I used it to remotely wipe data after I dropped a phone and cracked the screen so that it wasn't operable by the touchscreen. Without having Lookout I'd have been SOL but with it, using my computer I securely backed up and then wiped the phone data, did a factory reset, and sold that puppy for parts on eBay at a decent price.