Hi, my baby husky at 8 weeks would play with me for 5 mins then sleep for an hour or so wake up toilet, then play and sleep again. Was very funny to watch. All that exercising and play really gets to tired. Even now she's 9 months and when I come back from training for 2 hours we'll go for a long walk around another hour, play a bit more tug of war usually gets her so hungry and thirsty. Then another 30 min walk in the evenings and play chaseys around the house where we run around through several rooms and hallways in circles until she's oh sorry let me correct that when I'am completely and utterly worn out. She could sleep up till her bedtime which is 10-11pm and wake up 6am then back to sleep till 11am.
More or likely your puppy will get up for a game or two with you even if she looks like a sleepy head.