Sleeping pills?

Hit them with a brick.

Arrange to have them physically exhausted.

Slipping people pills and whopping them with bricks are both very dangerous approaches to inducing sleep.

Can you spell m-a-n-s-l-a-u-g-h-t-e-r?

Ill just have to hazard a guess then.

Ummmm......I know this is a little late.

Who's it for? Why do they need to be asleep for a few hours? Have you tried anything else? Are they taking any other medicines?

I'd personally suggest a nice lot of physical exercise followed by nytol or kalms.

It depends why you want this... Either not being able to get to sleep (eg sleeping problems, probably induced by worry about something subconsciously), need to knock someone out so you can rob them effectively... Or need to knock them out so you can have your wicked way with them (my preferred reason for slipping people pills)... Uhhhhhhh.. Did I type that out loud?

well chamomile tea seems to work but more tea of tilo and no sugars before bed =/

Roophies.

If all else fails, nothing like the good ol' fashioned combination of duct tape and rope.