What actually is REM — and what does it mean for your baby’s sleep? 🌙 REM stands for Rapid Eye Movement. It’s a lighter, more active stage of sleep, and babies move through both REM and non-REM stages across the night. As the night goes on, REM becomes more prominent. That means sleep can be lighter in the second half of the night — and babies may be more easily disturbed. So if they’re too hot, too cold, uncomfortable, or something in their environment changes, that disruption may be more likely to wake them. Which is why those 3–5am wakes can sometimes make a little more sense. 🤍 #babysleep #remsleep #infantsleep #babysleeptips #earlymorningwakes #sleepeducation #parentingtips #mumlife #parenthood #sleeplikegoldilocks