From that CBT page:
"If unable to sleep (e.g., within 20 min), get out of bed and go to another room and return to bed only when sleep is imminent "
man, I would never get to sleep at all, even if I'm feeling like I can barely keep my eyes open, I rarely fall asleep in less than 20 minutes!
Or, this one:
"Maintain a regular sleep schedule, particularly a strict arising time every morning regardless of the amount of sleep the night before "
Grrr... people are individuals. I have to get my sleep when I can (when my body/brain will let me), if I didn't have lie-ins when my body will let me catch up my long term sleep deprivation would be much worse than it is.
These pages are not written for people with small children causing many night-time disruptions.
"Avoid daytime napping"
This is the only one I kind of agree with. For me (and my DD, actually).