10/20/2025
First, let’s normalize this: your baby isn’t “spoiled” or “manipulative.” They’re just being… a baby. Here’s what’s going on:
✨ 1. Your body feels like home.
Your heartbeat, warmth, smell, and breathing patterns are all your baby has known. When they’re pressed against you, all their senses say “I’m safe.” That safety allows their nervous system to relax and that’s when sleep comes easily.
🧠 2. Regulation happens through connection.
Babies aren’t born able to regulate their body temperature, heart rate, or stress hormones well. When they’re on your chest, your body literally helps stabilize theirs. They CO-regulate to us. Our heart rates sync, stress hormones drop, and melatonin (the sleepy hormone) rises. In a bassinet, they have to work harder to maintain that balance.
💤 3. The startle reflex is real.
That little full-body jerk that wakes them up just as you set them down? It’s called the Moro reflex. It’s stronger when they’re flat on their back in an open space. Being snug in your arms helps dampen that reflex, so they stay asleep longer.
🍼 4. Survival instincts run deep.
From an evolutionary standpoint, babies who stayed close to caregivers survived. Their biology still says “stay near a warm, breathing adult = safety.” The bassinet? It doesn’t give those same cues, so they wake more often to check in.
You’re not doing anything wrong if your baby sleeps best on you. You’re doing something right. You’re meeting a biologically normal need for closeness and regulation.
Over time, as your baby’s nervous system matures, they’ll slowly be able to handle longer stretches on another sleep surface. Until then, it’s okay to find what works for both of you. Baby wearing, contact naps, or contact snuggles followed by a slow transfer are all normal.
Does your baby sleep better on you than anywhere else?