One nap transition

Hi mamas! My LO is 15 months and we transitioned to one nap a couple of weeks ago. However today she got up at 7 which is normal and seemed exhausted by 10 am. She fell asleep within 15 mins. We normally try to put her down between 1130 and 12 for her one nap. Should we just let her sleep a long stretch now? Or try to wake her up and maybe take a cat nap in the afternoon? These babes are like jigsaw puzzles 🧩 she’s still a great nighttime sleeper (knock on wood).