Hi just popping in to offer another pair of eyes. You've been having some great help already
How many weeks is LO now?
I agree totally with previous posters that often lowering our expectations of routine at this age is a massive help. Some babies do naturally fall into a predictable routine early on, but from looking around this site, I would say that by far the majority don't. Add to that the fact that short naps are a developmental phase which almost all LOs go through and it makes it a very stressful time for Mummy! In fact I think it was exactly the issue you are having which led me to this site in the first place
I would say that if you have tried a variety of A times and still tend to get 45 minute naps (I presume you've seen this -
Average A times and "Is my baby ready to increase A time?"), then it is most likely a developmental phase as LO hasn't yet worked out how to transition between sleep cycles without waking fully. The key is learning how to work with it.
There are things you can do to help try to extend naps e.g. shh pat as soon as LO starts to stir, applying gentle pressure to upper arms to prevent LO jolting awake, wake to sleep, even APOP for some naps (better than an OT baby in my book!) and working on settling independently at the start of naps will really help. However, you may well have a period of time where short naps are all you get so it is totally fine (and normal at this age) to have an EASAES type pattern to the day. If you're the kind of person that likes to have a plan, this can work:
Baby wakes for day - note time and feed e.g.7am
Note down time next feed due (10am) and next nap due (8.30am - using 1h30 A as an example)
Baby naps 8.30-9.15 - note time next nap due = 10.30am (shortened A to 1h15 because of short nap)
Feed at 10am, next feed due 1pm
Nap 10.30-11.15 - next nap now due 12.30 - ***potential clash*** as feed due when baby asleep - options are to give a small top up feed now so baby doesn't wake from next nap early due to hunger, or just let baby nap and feed when baby wakes
Etc etc
If you are getting to the afternoon and naps have been really short and LO is cranky, I would totally APOP a longer nap in the car, stroller etc to prevent major OT at BT.
My only other thought would be to wonder if he has some sort of discomfort e.g. Reflux or gas which could be contributing to short naps or frequent night wakings?
(((Hugs))) I can honestly say that things have become easier as LO has got older and able to stay awake for longer periods. Six months seems to be a big turning points for many so hang in there!