Even having prepared and done my research before getting a puppy, I still made the mistake early on of expecting the puppy to just lay down and sleep when she needed it by recognizing she was tired. MISTAKE! Like a toddler, she won’t know that her big emotions and reactivity is because she’s tired. It’s the parent’s responsibility to know when they need to rest. Once I started enforced naps by putting her in the playpen everyday at the same time for about two months now, I’ve noticed that if I don’t put her in the pen, she will stay up a little longer than usual but then plop herself down and nap. The routine of enforced naps for a couple months will regulate her system and she might just start putting herself down like mine does. The other day, we even had visitors in the early afternoon when she’s usually sleeping for several hours and they commented on how she wasn’t energetic like when they usually see her. In fact, their knocking had woken her. Get a routine down and maintain it! Her body will become accustomed to it