Based on the context and the answer, generate a question. 

Context: We been wanting to go to the Ma Wan Park for some time but were always full of excuses . After sending my mum to airport today , it was only 9 am . I was sleepy and tired but I did n't want to sleep cos that will make me feel even worse .

Answer:

They had to wake up early to taking their mum to the airport .



Why were they feeling so tired ?