My questions are what do I hold his awake time at?
A times at this age vary from LO to LO. Some like super long A times which means one longer nap and one shorter nap, and possibly a later BT and shorter night. others like shorter A times and more nap or night time sleep. It's a little bit of experimentation to find out what suits your LO best.Average A times- BOOKMARK ME!
So looking at your EASY times it seems he did okay on the super long A time of 5 hrs one morning but also he slept better after the shorter A time of 3hrs 10 mins. something like 3 or 3hrs 30 would be a suitable time to aim for at this age, but like I say some like much longer.
Do I set nap times would that work better?
This can be useful especially with an unpredictable WU time in the morning. It can be more consistent for the routine if you do as you did with that earlier WU day and keep the nap at a similar time each morning, although the A ends up long your LO seems okay with that.
A times do not need to be equal across the day though, again all LOs differ. Some are great with all A times the same, some like the first one longer and the subsequent A times shorter, and some the other way around!
How do I get a routine where I know where I am??
Sleep training will really help with routine.
Looking at what is happening now I would guess that some of the naps might be due to BF and feeding to sleep :
S BF and then nap at 245 as couldn't keep awake? And slept 40 mins
Here his A was just 2hr 35 and he couldn't stay awake. Breast milk and BF do encourage sleep so this could be the reason.
With regards to sleep training I see you have another thread on this where katherine (jessmum) has linked some of the links I would have also linked. The gentle removal plan is great for weaning feeding to sleep props and she has also made some suggestions regarding routine, feeding and sleep training methods.How to teach an 8 month old self settling??
You can continue to access support on sleep training on that thread.
hope this helps