How to beat that exhausted feeling
Not surprisingly, the simple act of getting a good night's sleep is central to Lipman's approach. He prescribes a daily "electronic sundown" - all computers, mobile phones and TVs should be turned off by 10pm to allow for the "transition into sleep". Keep your bedroom cool and totally dark - "like a cave," he says - with LED alarm clocks covered up or even disposed of, blackout blinds installed or eye-masks donned. This should, he says, help keep night-time melatonin production going. He also advises not turning the bathroom light on if you go to the toilet in the middle of the night, otherwise your body will be fooled into thinking it's morning again and turn off the melatonin tap.
This is the same idea I've pointed to before especially in Lights Out (and here)