Baby schedule

Hello mamas! Let's talk baby schedules- my babes is 4 months, she is fairly consistent for naps/bed (usually around 9 PM) but not on a strict schedule. Typical nap is 30-45 minutes (unless driving). She nurses to sleep and I put her in her swing for nap (she will wake up if I try putting her in her play pen or crib). We are also still feeding on demand.

When did you put your baby on a schedule? If possible, can you post what it looks like. And is there any way to help baby nap for longer?

Thank you 😊