when my son sleeps

usually my son will sleep through the night about 8-10 hours straight. ( 5 months old )

we live in a 2 family apartment style house. my in-laws are upstairs they have 3 kids that are in school.

anyways where our rooms are is right at their stairs to go up stairs and at the front door. I've been telling everyone when they walk in or out to keep it down cause my little one is sleeping. well it doesn't always work.

my son woke up at 630 am ( around the times kids are going to school ) and wouldn't go back to sleep for almost 2 hours.

this past weekend ( 3 day weekend ) he slept great. but now its up and down.

He's asleep on me right now and I'm pretty sure if I put him down he will wake up.