I've been having some trouble lately with WBTB. I sleep through the night, and so I can't wake up. Are there any suggestions that people may have? Before you reply you should know what I have and do not have.

I do not have:
A cell phone
Any vibrating alarm
Another person to wake me up

I have:
A alarm clock (but if I set it it will wake up everyone I live with)
A light
A bedside light
3 windows

Thanks in advance for any answers that may be given to me, everything is appreciated.