depends - if i dont need to get up, valarium product with hops and other stuff. cheap, effective, nice cosey lie-in.
If I DO need to get up for work etc. then a gh boosting product of old... Velvet bean/Macuna puriens aka USP Powerfull (remeber that??)
Makes you feel like you've had 8 hours sleep on just 4 - gets you into REM within minutes.
ZMA can help too if youre defficient