Sometimes you might wake up in the middle of the night. This is completely normal, but can be a hassle if you can’t fall back asleep again.
The weird thing is, that sometimes it is completely regular. Like waking up every 2 hours. What can be the reason for this irregularity?
It is all about the cycles
The reason why you might have developed a rythm to wake up every two hours is that sleep cycles last for 90-120min, one sleep cycle. You might actually have a thresold in light sleep that you wake up between. This is not worst, because you still get your cycles. It’s far worse to have an irregular waking cycle.