Early morning to Great wall

Hi! I will be visiting China for 5 days, and on my way back from PingYao, I have about 5 hours before my plane leaves. However, I arrive in Beijing too early, 4 am. Is it possible to visit the wall at such an early hour (4 am)? I will arrive at Beijing West Railway Station at 4 am and my flight leaves at 9:56 am at PEK. 5 Hours is a long wait, and I won't be able to see the wall or forbidden city when I first arrive here so I was hoping I could at least see the wall before I left! Thank you!!