Why Tummy Time Matters More Than You Think

In 1994, the American Academy of Pediatrics launched its "Back to Sleep" campaign, urging parents to put babies to sleep on their backs to reduce the risk of Sudden Infant Death Syndrome. The campaign worked. SIDS deaths fell by more than 50% in the following decade, one of the most successful public health interventions in history.¹

But the campaign had an unintended side effect. Babies who spend nearly all their time on their backs, in car seats, swings, and cribs, often develop flat spots on the back of the skull (positional plagiocephaly) and can show delays in the motor skills that come from pushing up against gravity. The answer, pediatricians realized, was tummy time.³

What Tummy Time Actually Builds

Tummy time is the simple practice of placing a baby on their stomach while awake and supervised. From that position, a baby learns to lift their head, push up on their arms, and eventually roll over. These movements build the neck, shoulder, and core strength that will later support sitting, crawling, and walking.

Research published in Pediatrics has found that babies who get regular tummy time reach motor milestones earlier, on average, than babies who do not. The effect is modest but consistent. Tummy time also gives the back of the head a chance to round out, reducing the severity of positional plagiocephaly.

How Much, and When

The AAP recommends starting tummy time in the first days of life, beginning with just a few minutes at a time, two or three times a day, and working up to a total of 15 to 30 minutes per day by the time the baby is three or four months old.

For many babies, tummy time is initially miserable. They cry, they squirm, they face-plant into the mat. This is normal. A few strategies help: lay the baby on your chest rather than the floor at first, use a rolled blanket under their arms, get down on their level so they can see your face, and keep sessions short but frequent.

It Is Not a Test

It is easy to turn tummy time into another item on the parenting checklist, another thing to feel guilty about not doing enough of. The research suggests a more relaxed approach: some tummy time, most days, in small doses, with plenty of cuddles in between, is plenty. The goal is not to hit a quota. The goal is to give your baby regular chances to struggle, just a little, against gravity, and to discover what their body can do.

Beyond the First Months

Tummy time does not stop being important once a baby can roll or sit. The prone position continues to build strength and coordination throughout the first year. As the baby grows, tummy time evolves: from simply lifting the head, to pushing up on arms, to reaching for toys, to pivoting in a circle, to the precursor of crawling. Each stage builds on the last, and each requires time on the tummy to develop.

Even after a baby is mobile, floor play remains valuable. Crawling, climbing, and exploring on the floor develop the core strength, bilateral coordination, and spatial awareness that will later support walking, running, and even handwriting. The instinct to hold babies constantly is understandable, but the floor is where the real developmental work happens. Give your baby the gift of floor time, and they will give themselves the gift of strength.

Making It Enjoyable

The most effective tummy time is the kind the baby does not mind doing. A few strategies can transform tummy time from a battle into a pleasant part of the day. Get down on the floor with your baby, face to face. Use high-contrast toys or mirrors to give them something to look at. Sing, talk, and make eye contact. Try different surfaces: a play mat, a blanket on the grass, your chest. Some babies prefer tummy time on an exercise ball, where the gentle rocking provides vestibular input that is calming.

Remember that tummy time on your chest counts. In the early weeks, when the floor feels too hard and the baby is too small, lying back with the baby on your chest is a perfectly valid form of tummy time. The baby is still working against gravity, still lifting their head, and still building the muscles that matter. As they get stronger, gradually move them to a firmer surface. The transition does not need to be abrupt. It just needs to happen.