DD is 14m and based on the sticky posts, I assumed her naps should be 2-2.5hrs - though she hardly ever naps that long because right around the middle, the neighborhood kids (and their loud parents) get home and they're yelling, screaming, grinding their skateboards on sidewalks, dribbling basketballs. We already play white noise but I'm not sure how loud is "safe". I've tried adjusting her A time, thinking she might be sleeping lightly because she's UT but it hasn't done the trick. I also bumped up her A time because she has started to WU earlier.
Our usual EAS
WU 730-750
S 115-250
BT 730
The past few days have deviated from our usual EAS, WU around 650-720, naps 1h15m.