There might be one of the following going on or perhaps a few at the same time:
*It sounds like he is clingy either because of SA, you can read about it more here:
Stranger Anxiety-5 months+ and he just doesn't want you to be away from him, is not sure if you are coming back, and so on OR it could be discomfort, probably teething. The teething and SA could explain NW as well.
*
usually 4 am or 6am.
This could be habitual waking if it occurs every night at the same time. Perhaps in the past it was hunger related and stayed there because he is so used to it. If you think it's that and not routine related then you can try and do W2S
How do I address habitual wakings? (wake-to-sleep and other methods)*
Its very hard me to not "sway" with him and shhh pat and pick up, except last night when he stood I simply put him back to lying and he fell asleep again.
Pat/shh is not age appropriated anymore and usually at this age it disturb them more than helping them sleep. The better way to do it at his age is PU/PD, but if he is pulling himself in the bed already then you can use only PD, which is IMO is far easier than PU/PD because there is no frequent picking up - I remember my back hurt so much when I did it at 4m that I had to quit... I am not sure how you are trying to settle now the NW, but IIWY I would use PD.
*
10am - Nap usually for 1 hour 10 min
3pm - Nap usually 1 hour or 1 hour 10-15 min
Seem to be transitioning right now to maybe one nap???
Yes, he is in an age that most babies start the transition from 2 naps to 1, but it's a long way, it doesn't just happen, otherwise LO gets extremely OT. The way Tracey suggested doing it is capping the AM nap and having a full nap (1.5-2h) in the PM. For us personally it never worked because DS' better nap was the morning one, so I capped the PM one. You can read about it more here:
10 to 12 mth old Sleep Gone Wonky, and the 2 - 1 Nap SwitchI think in your case, your two naps right now are UT, the length of them would indicate that, so I would be working on capping one of them and getting the other one established and longer than it is now (1.5-2h). It's up to you on what nap you want to work, but let's say you cap the AM one and want a full PM nap, then in the first few days you cap the first nap but leave the second A time as it is now, so he doesn't get OT. After a few days, if PM nap is still not long enough then you push the second A by 10-15min and stick to it for 3-4 days and see if there is a change with the nap. If you decide to cap the PM nap then up the first A by 10-15min for 3-4 days, you can leave the second A as it is for now and cap the PM nap.
*
6-7pm - Bath bottle bedtime - He usually is hard to put to bed and falls asleep almost near 8pm. He fell asleep early yesterday BT since no PM nap. Wondering if I should put him to bed earlier.
How much A would you say he has before BT? Because according to what you posted it's sometimes 2h and that's not much at all. I actually think that he is going to bed UT and that's why he is fighting sleep for such a long stretch. I would try and stick more with 19, rather than 18 and make sure the second nap is spaced enough from BT.
Hope that helps and that I didn't rumble much
. Let me know how you are doing.