Wakeful means being awake or alert, and having a clear mind. It can also refer to something that is lively or vibrant, such as wakeful music or artwork.
I was actually a little annoyed, because I know so many moms of wakeful babies who get freaked out when their pediatrician asks them this question. (wendywisner.com)
Like adults, babies go through several cycles of wakeful periods during the night. (woolino.com)
Patrick is starting to have a lot more wakeful time so she helped me set up lots of baby areas in our house. (meetat-thebarre.com)