He's really not that bad of a night time sleeper, and I have my own sleep issues that I need to sort out, but I think when our son is sleeping through the night consistently, my sleep will improve as well. Anyways, he just turned 5 months this week. He sleeps in a sleep sack...we mostly stopped using the Merlin because we thought it was stopping him from rolling. We do sometimes change him out of the sleep sack, and into the Merlin, if he refuses to go back to sleep in the middle of the night. He went through his four month sleep regression-had difficulty laying him down for naps and would wake at unpredictable hours. Recently he has been laying down for naps much better, however he has never been one to nap for long stretches. He does give us some solid overnight stretches, but I'm hoping for 7-7 stretches by 6 months, and I'm worried we aren't going to get there. He's already teething-his first two teeth came in at 4 months. We give him baby Tylenol before bed when we can see that his tooth is breaking the gum/he's fussy during the day. He's a very good eater, and has not woken up due to hunger for weeks. He also had a tongue tie and lip tie repaired that has helped him nurse much better. He sleeps in his crib in a nursey with blackout shades and a white noise machine. The room is usually around 70 Fahrenheit (About 21 Celsius). When he wakes at night, we try to pacify him first (butt pats because he's usually rolled onto his stomach), but if that doesn't work then we pick him up and try to shush him back to sleep. It usually takes 3-4 attempts and he'll be awake for an hour on average, which is what makes it so difficult.
Another important note is that while he loves rolling onto his belly, he still doesn't know how to consistently roll from his belly to his back. During these wake ups, he's crying right away because he's "Stuck" on his stomach. Rolling him back onto his back doesn't help, he just continues to cry/be restless. The only nights where he is giving us 11 hour stretches straight right now is when we really wear him out during the day-long days out all day-which isn't sustainable over the long term. As of now during the day his wake windows are averaging 2 hours, and his feeding stretches are about 2-2.5 hours.
Here's our normal schedule
Wakeup 6:30AM, first feed (Nursing) after diaper change. Playtime until about 8AM.
First nap is usually 8-9AM, maybe 8-8:30.
Next feed comes soon after, around 9AM.
^That morning run is very consistent almost day-to day
Then from 9-5 it can change based on our work schedules, but typically there's a feeding around 11:30AM (before our lunchtime), 2PM, and 4:30-5PM. Nap wise, he normally is taking a 30-40 minute nap at 11AM, 1:30PM, and 4:30PM-5PM. Overall I would say he averages 3 hours of daytime sleep.
After 5PM we hit the start of our bedtime routine. He gets nursed around then like previously stated, has dinner with us (he gets purees now) around 6:15PM, bath time after dinner, and then gets a 5.5 ounce bottle around 7PM, is read a book so he isn't going straight from bottle to bed, and is laid down to sleep around 7:30PM on average. And then overnight he's usually sleeping 7:30-3:30AM, and then 4:30 (maybe 5 on extra bad nights) to 6:30AM. We've tried feeding him during those wake ups a couple of times, and he barely eats, so we know it isn't hunger. He never poops overnight, so diaper isn't the problem. I'm guessing it's possibly due to the teething, but is he getting to much/little day time sleep? Should we kill the last nap? Looking for some guidance to improve quality of life for all of us, thanks!