I make sure it a high 10 before sleep
That's a good plan in these early weeks for reducing the chances of a night hypo. You'll get more confident going to sleep at lower levels as time goes by but it's a good call when starting out.
10 should be safe enough but for a bit of added reassurance, it can be useful to have a small snack like cheese on toast or some oatcakes just before bed. Food like that will break down and be absorbed slowly because of the fat in the cheese, and oats break down slowly anyway, so they'll give a slow drip-feed during the night, which can be good for sorting out a few things, like basal being too high, honeymoon randomness. You might end up higher than you'd like with unbolused toast but better safe than sorry in these early days when the family is away.
Try to avoid drinking alcohol - some of the messiest hypos I've ever had were because of a few too many beers on a Friday night in my first six months. That's not to say never drink again, far from it, just take it easy for a few months till you've picked up more of the basics.
I'm not saying this next bit to scare you, just to make you aware that bad night hypos do happen, so it's as well to have an understanding of what they involve.
If it all still goes wrong and you find yourself waking up in the middle of the night, dripping in sweat and not knowing where you are, those can be deeply confusing and unpleasant situations - your brain will be working in weird ways but rest assured that your liver will already be at work releasing stored glucose to raise your blood sugar (the sweat is caused by adrenaline being released to tell the liver to do that) so help it along with the dextrotabs you'll already have on the mattress. Don't keep them in the kitchen or nearby, keep them on the bed - in a bad hypo, you don't want to be stumbling around looking for them. Try to keep in mind that although it seems like a pretty grim situation at the time, your liver is already getting you out of it, and getting some sugar in your face will get you back on the rails but just be patient as the glucose takes time to get into stream. You'll likely still feel lousy for a while, because even though bg is up to a decent level, there will still be adrenaline swimming around and that can make you still feel washed out.
It's highly unlikely you'll have a really bad night hypo going to sleep on 10 with some cheese on toast inside you, but it's as well to be aware of the possibility for the future. I think it's surely happened to pretty much all of us at one time or another, but we all get through those sort of situations. They are a big risk for the very young and the very old, but for a 44 yr old, not so much.
