I have a feeling that the more "advanced" tips seen in this thread are more (personal) solutions/improvements for the situation of "I am stressed and so I canno

I have a feeling that the more "advanced" tips seen in this thread are more (personal) solutions/improvements for the situation of "I am stressed and so I cannot sleep well". I.e. to make a non-optimal situation a little better. Which is fine, but in general I'd think having the luxury of being in a calm, comfortable and unworried state of mind is the most beneficial.