1.5 year old sleeping help

I need help. My son, who has no diagnosised neurological issues, has the hardest time sleeping. He takes 1 nap during the day and then 85% of the time sleeps through the night.

Lately he does this thing where he is very obviously tired and just stares at the ceiling and doesn't go to sleep. If the staring thing goes off for too long he starts babbling and then its near impossible to get him to sleep.

I'm having a much harder time than normal as I'm away from home and I'm sure this is affecting him not being in own home.

I know you're not suppose to swaddle at his age but sometimes it helps and sometimes it does. Sometime rocking him helps sometimes it doesn't.

Sometimes a bottle helps and sometimes it's like I gave him coffee instead.

I had 2 high blood pressure attacks the last two nights trying to just get him to sleep. He didnt go to sleep until almost 2am.

Any advice woild be appreciated.