SleepLabix Guides
All Articles
Clear, honest guidance on the 90-minute sleep cycle method — how it works, why it helps, and how to plan your nights around it.
What Time to Sleep to Wake at 7am, Cycle by Cycle
Back-compute your bedtime for 4, 5, or 6 cycles and hit a refreshing 7:00 am wake with a predictable fall-asleep buffer.
20-Minute Nap vs 90-Minute Cycle: Which Improves You
Power napping before deep sleep versus completing a full cycle — when each fits, and why one of them leaves you groggy.
Sleep Cycle Sleep Calculator: Wake Up Refreshed
How cycle counting works phase by phase, and why timing your alarm to a cycle boundary reduces sleep inertia.
How Many Sleep Cycles Do Adults Need Per Night
Why 4–6 cycles (6–9 hours) is the adult target range, what age changes, and what happens when you only manage three.
REM vs Deep Sleep: Which Makes You Wake Refreshed
Memory and dreams in REM versus repair and growth in deep sleep, and why finishing a cycle preserves both.