Whenever I don’t get a good night sleep the night before( like 2-3 hours at the most instead of my normal 6-8), and I have to deal with the day anyways (work, kids). Once I get back to bed at night, it still takes me awhile to fall asleep.
Where as other nights I could fall asleep as soon as I hit the pillow.
In: Biology
Your body has it’s own ultradian rhythm which operates over a 3 to 4 hour cycle. So your body is at it’s most energetic state every 3 hours or so and at it’s most restful state every 3 hours or so. This means if you try fall asleep before your body hits the low point of it’s ultradian cycle (and no other factors like stress or indigestion, etc) then it’s very easy to get to sleep and you can pass through REM to deep sleep pretty quickly. If you miss that low point then you’re fighting your body as it’s busy getting ready to be more active. Personally I need to get to sleep shortly before midnight otherwise my next sleep window is only at 3am.
Because you don’t tire yourself out enough, you can feel tired without being properly tired.Try an hours exercise a day and I guarantee you’ll sleep like a baby.
Falling asleep really has little to do with fatigue. Not being tired tends to keep you alert, but it’s not guaranteed to keep you from napping in your recliner.
It’s about mental alertness. Most people cannot fall sleep because their mind is busy with worry or thoughts. I think your statement of being busy speaks to your level feel of stress, which keeps you up at night. You are probably rushing rushing rushing trying to finish so you can finally sleep. If you ran a marathon and laid down, you wouldn’t be able to fall asleep quickly. Same sort of thing.
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