Help with help

[rappiolla]

I have a confusion with help + infinitive, does it require "to" and if yes, when?
For example, which of these 2 is correct?
1. "Pills help some people sleep better"
2. "Pills help some people to sleep better"
Offhand I can't remember any specific context but I think I've sometimes seen just "help" and sometimes "help...to".

[Tdol]

You will see both used and I don't think there's much, if any, difference in meaning. Also, after 'can't help' we use a gerund.