Sleep Blog & Guides

About Our Sleep Guides

Every guide on this blog is written to turn published sleep science into something you can actually use tonight. Rather than vague advice to “sleep more,” our articles focus on the mechanics of how sleep works — the 90-minute sleep cycle, the four sleep stages, your circadian rhythm, and how each one shapes how rested you feel. Understanding the “why” is what makes the “how” stick, so most guides pair the science with a concrete, step-by-step routine you can follow.

The collection is organised around the questions people actually search for. There are practical timing guides that answer questions like what time to wake up if you go to bed at a certain hour, and what time to go to bed if you need to be up at 5, 6, or 7 AM. There are honest, evidence-based answers to whether a given amount of sleep — four, five, six, seven, or nine hours — is genuinely enough. And there are deeper explainers on the science of sleep stages, sleep inertia, circadian rhythms, and how to fix a schedule that has drifted out of sync.

The best way to use these guides is to start with the one that matches your immediate problem, then follow the internal links to the related calculators. If you're unsure where to begin, the sleep calculator on the homepage will give you personalised bedtimes and wake-up times in seconds, and each guide explains the reasoning behind those numbers. New articles are added regularly, all grounded in guidance from sources such as the National Sleep Foundation, the CDC, and the American Academy of Sleep Medicine.

Where to Start Based on Your Goal

With so many guides here, the quickest way in is to start from what you actually want to solve. If you're trying to figure out when to sleep or wake, begin with the timing guides — the “what time should I sleep to wake up at 5, 6, or 7 AM” articles and the “if I sleep at 9, 10, 11 PM or midnight” charts all work backwards from complete 90-minute cycles. If you keep wondering whether you're getting enough sleep, the “is X hours of sleep enough” series gives honest, evidence-based answers for everything from four to nine hours.

If your problem is sleep quality rather than quantity— waking up groggy, tired despite a full night, or struggling to drift off — head for the explainers on sleep stages, sleep inertia, why you wake up tired, and how to fall asleep faster. And if your whole schedule has drifted out of sync, the guides on fixing your sleep schedule and understanding your circadian rhythm walk you through a step-by-step reset. Each article links to the calculators that turn the advice into specific times for your situation, so you're never left with theory you can't act on.

How We Keep These Guides Trustworthy

Sleep is a field full of myths and marketing, so every guide here is built on published research and official guidance rather than opinion or trends. We lean on sources such as the National Sleep Foundation, the CDC, and the American Academy of Sleep Medicine, and we focus on the mechanisms that are well established — how sleep cycles work, how light controls your body clock, how sleep debt accumulates — rather than chasing the latest fad. Where the science is genuinely uncertain or individual, we say so, because honest guidance is more useful than false certainty.

We also write for real life. Advice that only works in a sleep lab isn't much help on a busy weeknight, so the guides aim for changes you can realistically sustain: a consistent wake time, smarter light exposure, a calmer wind-down, and bedtimes that complete full cycles. Read whichever article matches your situation, apply one or two changes at a time, and let the results build over a couple of weeks — that steady, evidence-based approach is what actually improves sleep.