Supplement (as it's impossible to write whole post at once when having a shortnaper)
1)Ds sleeps pretty well at night. He usually wakes up at 3ish for E. After day with very short total nap time he wakes up several times at night but it doesn't take much time t resettle him.
2)I tried HTTJ, but it never worked - DS waked up anyway, gave a glance "hey, mum, why are you here?" and never resettled. I try w2s but it works only sometimes. First time it worked actually when I acidentally kicked my DS crib, lol.
3)nap in sling works only once per day for two reasons. One - my back is killing me after 2 hrs of carying DS. Two - i don't know why, but DS do not nap longer if took in a sling more times O__o" (maybe he doesn't fell comfortable?)
Is your Lo upset when waking from his nap ?
(...) Again DD1 could only do 1hr at 4 months but almost 2 hrs by 5 months
Those los grow up so fast, everything changes, huh? I can hardly notice any sleep pattern. Few days ago for example he fought the "sitting" part of wind down and then fell asleep sudenly, now he does not fight it but just fuses and it take him time to fall asleep.
He used to wake up with great cry, now he just fuses a bit.
And because he just fuses after short nap and it's pretty easy to calm him I don't use PU/PD but he does not fall asleep again.