A few days ago I stayed up till 2am doing this process multiple

2 Year Old Not Going to Sleep Until 11pm? - Sleeping Should Be Easy

What Does Staying up all Night and Sleeping all Day do to the Body?

Why Do You Keep Waking Up At 3am? - The Sleep Charity

History of sleep Holland & Barrett - the UK's Leading Health Retailer

I Stay Up Until 3 AM Every Night

Teens Are Driven to Stay Up Late, but Why?

The Pick Up Put Down Method: A Gentle Sleep Training Guide

Rules for Writing Numbers: Know When To Spell Them Out

The Best Time To Go to Sleep

What to Do When You Overthink at 2 AM (and All Other Hours of the Day), by Itxy Lopez, Mind Cafe