4 month old sleep regression tips

Courtney

I so thought we had a schedule, it wasn't to a tee everyday but it was pretty close and then everything goes out the window and dug around google and is thinking he must be having a sleep regression. Any tips for this and example of a schedule for him now? I'm a first time mom and learning something new everyday lol never knew of a sleep regression. And what did your baby act like during theirs?