Wild, Obe music? Help entering

i like lying down and listening to chillout music at night before going to sleep.
My first question is, do you know some really good music for OBE’s ?
After about 30 Minutes i get a feeling of numbness in my limbs but can´t get any furter, no SP or out of body experience…
How do i get further?
how long does it take?

Thanks,

calvin

ive never seen it through but with me never more than 10 or 15 minutes before freaky stuff start happening. and you could try using the alfa wave thing. they have these soundstracks of like waves and binaural beats.