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Evidence-based sleep advice

Baby Sleep Blog

Free tips, guides, and advice for every age and stage — from newborn to toddler

Toddler sleeping peacefully
Sleep Environment

White Noise for Baby Sleep: What the Research Actually Says

Is white noise safe for babies? We break down the research on white noise machines, safe volume levels, and what the evidence says about sound and baby sleep.

·8 min read
Newborn baby showing early tired cues with slightly glazed eyes
Wake Windows

Newborn Wake Windows: Why They're So Short and How to Read Your Baby's Cues

Newborn wake windows are just 45-90 minutes because of immature brain development. Learn why clock-watching doesn't work at this age, how to spot tired cues, and what's normal.

·8 min read
Baby crawling energetically across a play mat during an awake period
Wake Windows

Wake Windows at 7-9 Months: Longer Awake Periods, Nap Transitions, and the Crawling Effect

Wake windows at 7-9 months typically range from 2.25-3.5 hours. Learn how the 3-to-2 nap transition affects timing, why the last nap becomes a battle, and what to do about it.

·8 min read
Baby lying on a play mat looking alert during an awake period
Wake Windows

Wake Windows at 4-6 Months: When Sleep Starts Getting More Predictable

Wake windows at 4-6 months typically range from 1.5-2.75 hours. Learn how the 4-month regression affects timing, why the first window is shortest, and how to find your baby's sweet spot.

·8 min read
Toddler walking confidently during an active awake period
Wake Windows

Wake Windows at 10-14 Months: Why Your Baby Might Need More Awake Time Than You Think

Wake windows at 10-14 months typically range from 3-4.5 hours. Learn why undertiredness becomes increasingly common, how to avoid the 12-month nap trap, and when to start thinking about one nap.

·8 min read
A bedside cot next to a parent's bed
Co-Sleeping

Transitioning Out of Co-Sleeping: A Gentle, Gradual Guide

Ready to move your baby from your bed to a cot? Learn why gradual approaches work better than cold turkey, how to maintain connection, and what to expect week by week.

·8 min read
Toddler reading a bedtime story with a parent in a dimly lit bedroom
Toddler Sleep

Toddler Sleep at 2-3 Years: Nap Dropping, Night Fears, and Bedtime Battles

A complete guide to toddler sleep between 2 and 3 years — dropping the last nap, emerging night fears, cot-to-bed transition, and managing bedtime boundary testing.

·10 min read
Toddler standing in a cot holding the railing at bedtime
Age Guides

Toddler Sleep at 18-24 Months: Regressions, Boundaries, and What to Expect

Why does sleep fall apart at 18 months? Understand the 18-month regression, boundary testing, climbing out of the cot, and how to navigate this intense developmental stage.

·9 min read
A toddler around 14 months old being read a bedtime story in a calm, dimly lit room
Age Guides

Toddler Sleep at 12 to 18 Months: The Complete Guide to This Intense Stage

A complete guide to 12-18 month sleep — the 12-month regression, 2-to-1 nap transition, walking, separation anxiety, molar teething, and early boundary testing.

·11 min read
Expectant parent sitting in a comfortable chair reading, with a Moses basket set up nearby
Prenatal

Third Trimester Sleep Preparation: What to Actually Understand Before Baby Arrives

Forget the nursery shopping list. The most valuable thing you can prepare before baby arrives is understanding newborn sleep biology, the fourth trimester, and realistic expectations.

·9 min read
Close-up of baby's feet
Developmental

Teething and Sleep: What Actually Helps

Teething is often blamed for weeks of bad sleep — but the research tells a different story. Learn what's normal, what's not, and when to see your GP.

·7 min read
Evening sunlight streaming through a nursery window in summer
Seasonal

Summer Light and Baby Sleep: Why UK Summers Are Brutal for Bedtime

UK summer daylight until 10pm suppresses baby melatonin. Learn why summer light disrupts baby sleep, how blackout solutions help, and how to manage the heat.

·8 min read

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