Why is this the answer?

The answer is pillow because this is a very clever riddle that plays a fun trick with the word "head." It is not talking about the pillow itself having a real head, like a person or an animal. That would be quite a surprise! Instead, the riddle is talking about your own head and where it goes during your busy day. Imagine you are sleeping soundly at night. Your head is resting right on your soft, fluffy pillow. It is cozy and still. When the morning arrives and it is time for you to wake up, you lift your head from the pillow to sit up and start your day. When your head leaves the pillow, the pillow is left all alone and empty. It is like the pillow has "lost" the head that was resting on it, even though it was your head and not truly the pillow's to begin with. This moment of you leaving for the day explains the first part of the riddle: "What loses its head in the morning." Then, you go through your whole day. You eat breakfast, go to school, play with your friends, and do your homework. After all that work and all the fun, you start to feel very sleepy again. When nighttime comes, it is finally time to go back to your bed. You lie down and put your head right back where it belongs, snug and safe on your pillow. By letting you rest your head on it once more, the pillow "gets it back at night." This simple object is a huge part of your routine every single day. The riddle is a wonderful word puzzle that uses the words "loses" and "gets back" to describe how your head interacts with the pillow twice a day. It makes you think about an object that magically grows and loses a head, when really it is just describing the pillow's role in your sleep schedule. The pillow is like a silent, waiting friend that holds your head all night long and welcomes it back every time you are ready to rest and dream. It is the perfect answer because it is something you use every single night.