A dry-erase pocket, a dim lamp, and one tiny feed log turned our 6 a.m. into something we could repeat.
The dry-erase pocket by the bassinet

I didn't want another app pinging me at sunrise, and I also didn't want to stand there doing mental math while a hungry little person ramped up. The simplest thing I've found is a clear dry-erase pocket (the kind teachers use for worksheets) hung off the side of the bassinet with a Command hook. Inside it I keep one index card with four lines: last feed start time, which side (or how many ounces), last diaper, and whether vitamin D happened. That's it. No running list. No notes novel.
What makes this work in the morning is the physicality: you can write on the pocket with a fine-tip dry erase marker, then wipe it with your thumb and the hem of a T-shirt. The marker lives in the pocket too, capped, clipped to the top edge with a small binder clip so it doesn't migrate into the sheets. When the first fuss starts, I can do the whole check in about five seconds with one hand, the other hand already under the swaddle to do a slow, steady unwrapping.
Two practical details I learned the annoying way: use a marker that writes dark without pressure (Expo Vis-a-Vis wet erase is my favorite because it doesn't skip on slick plastic), and keep the card extremely boring. If you add a bunch of boxes, you will stop using it. Also, the pocket should hang low enough that you're not reaching over the sleeping body to write. In my house that reach was the difference between a quiet diaper change and a full, indignant wake-up. When my partner takes over, there's no whisper-conference. He reads the card, makes the call, and we both keep our tempers because we're not guessing.
A sunrise lamp set to 1% before you go to bed

Morning peace with a tiny sleeper isn't just about what you do. It's about what you don't accidentally trigger. For us, the biggest trigger was light. Not the soothing amber glow people post on Instagram, but the overhead switch that turns a half-awake feed into wide eyes and flailing arms.
I set up one lamp (a basic bedside lamp, nothing fancy) on a smart plug, and I programmed it to come on at 1% brightness at the same time every day. If you already have Philips Hue bulbs, you can do this directly in the Hue app with a warm color temp. If you don't, a dimmable bulb plus a plug timer gets you most of the way there. The important part is that it turns on before anyone is crying, while the house is still quiet. When I walk in, there's already enough light to see the diaper tabs and the bottle markings, but not enough to snap everyone into full daytime mode.
Then I stick to a boring order that matches how mornings usually go: quick diaper first if there's any hint of wetness (I keep Aquaphor and a stack of diapers in one open bin so I'm not rummaging), feed second, burp third, and then a few minutes upright against my chest. I don't talk much. I don't put on music. I don't scroll. It's just the lamp glow and the same chair every time. The lamp being on a schedule is the whole trick because it takes the decision away from me. Half-asleep me can't be trusted with switches.
If you want one extra layer of calm, keep the blinds cracked the tiniest bit so natural light starts to help around the same time. You don't need a dramatic sunrise. You need enough visibility to move slowly and not fumble, because fumbling is loud. The click of a snapped onesie in a silent room is basically a cymbal.
The pre-warmed swaddle stack (no dryer, no drama)

There's a very specific moment that used to blow up our mornings: the second the swaddle came off and cool air hit skin. The arms would pop out, the startle reflex would kick, and suddenly I was trying to feed a furious little octopus. I don't put swaddles in the dryer at dawn, and I don't want a space heater running in a sleep-deprived household. So I started doing a pre-warmed swaddle stack the night before.
Here's what I mean. I fold two wraps (we used the Happiest Baby Sleepea and a couple of plain muslin blankets) and put them in a small fabric basket. That basket lives next to my body for about ten minutes while I'm getting ready for bed. Sometimes it's on the couch beside me, sometimes it's literally tucked against my hip while I brush my teeth. It's not hot, just not cold. Fabric holds onto that little bit of warmth surprisingly well, long enough to get through an early diaper and a re-wrap.
In the morning, I lay the warm wrap open on the changing pad before I unfasten anything. That way, the transition is quick: diaper, wipe, slide the wrap under, and close it back up. If we're using the Sleepea, I make sure the inner band is already laid flat and the zipper is started at the bottom so I'm not fighting a zipper track with one hand. If we're using a blanket, I pre-fold the top corner down so it doesn't end up in their face when I'm half awake.
This isn't about being fancy. It's about removing one sharp sensory jolt from the routine. When the wrap feels familiar, the feed tends to start softer. And when the feed starts softer, everything after it is quieter: less gulping, less frantic burping, less milk dribbling down a pajama sleeve you just put on. I still have mornings that go sideways, but this is one of the few changes that I felt immediately, the first day I tried it.