Safe sleep guidelines correctly recommend babies sleep on their back. But this means more time on the back — and without enough tummy time, the skull can flatten. Tummy time is the solution to both goals.
Why Tummy Time Matters
- Prevents positional plagiocephaly (flat head from lying on the same spot)
- Strengthens neck, shoulder, and core muscles needed for rolling and crawling
- Prevents neck tightness (torticollis) from head always turning one way
- Develops the visual and proprioceptive systems
- Gives the back of the skull a rest from constant pressure
When to Start
From day one. Even newborns can do tummy time — on your chest (chest-to-chest) while you recline is the safest and most natural starting position. The goal is not 'floor time' specifically, but any supervised time where the baby is belly-down.
How Much Tummy Time?
| Age | Target Time | How to Achieve It |
|---|---|---|
| 0–1 month | 5–10 minutes total per day | Short sessions after diaper changes |
| 2–3 months | 15–20 minutes total per day | 3–4 sessions of 5 minutes |
| 4–6 months | 30+ minutes per day | Longer sessions as tolerance builds |
| 7+ months | As much as possible | Baby may spend most of floor time on tummy |
When Your Baby Hates Tummy Time
Most newborns initially resist tummy time. Strategies that help:
- Start on your chest, reclined at 45 degrees — less gravity to fight
- Place a rolled towel under the chest to lift the head slightly
- Get down at eye level and make eye contact — motivation matters
- Try right after a nappy change when the baby is calm
- Never do tummy time right after a full feed — wait 30 minutes
What Flat Head Syndrome Looks Like
Positional plagiocephaly appears as a flattening on one side of the back of the skull, sometimes with a forward shift of the ear on the affected side. Brachycephaly is flattening across the entire back of the skull from lying centrally. Both are preventable with repositioning and tummy time.
Tip
Also reposition the baby's head during sleep — alternate which end of the cot the head is at so the baby turns to look at the room from different angles.