Tummy time is one of the most important daily activities for your baby’s physical development. It builds the neck, shoulder, and core strength that babies need to eventually sit up, crawl, and walk. The American Academy of Pediatrics recommends starting the day you bring your baby home from the hospital, with two to three short sessions of three to five minutes each day, working up to 15 to 30 minutes total by seven weeks of age.
What Tummy Time Actually Does
When your baby lies on their stomach while awake, gravity forces them to work against it. Lifting their head, even slightly, engages the muscles along the back of the neck, across the shoulders, and down through the arms. These are the same muscle groups your baby will rely on for every major physical milestone in the first year: holding their head steady, pushing up on their arms, rolling over, and eventually crawling.
A systematic review covering over 4,200 infants across eight countries found that tummy time was positively associated with gross motor development, the ability to move while on the stomach and back, and improvements in crawling and rolling. Interestingly, the review found no clear association between tummy time and fine motor skills or communication, which makes sense. Tummy time is specifically a large-muscle workout. It trains the big movements, not the small ones.
Beyond muscle strength, tummy time gives your baby a different visual perspective. Looking around from a prone position encourages them to track objects by turning their head, which supports early visual development and spatial awareness. By the end of month three, most babies can lift their head and chest while propped on their elbows during tummy time.
Preventing Flat Head Syndrome
Since babies should always sleep on their backs to reduce the risk of SIDS, they spend a lot of hours with pressure on the back of their skull. That consistent pressure can cause flat spots, a condition called positional plagiocephaly. Tummy time is the primary countermeasure.
One study found that babies whose parents received guidance on regular tummy time and limiting time in car seats and bouncers had roughly half the rate of flat head development at three months compared to a control group (15% versus 33%). That’s a significant difference from a simple daily habit. The combination of regular supervised tummy time and reducing time spent in devices that keep babies on their backs can prevent or lessen the severity of head flattening.
How to Start (and What to Do When Baby Hates It)
Most newborns protest tummy time. This is normal and expected. Their muscles are weak, the position is unfamiliar, and they can’t yet lift their head to see what’s happening around them. The key is to start with very short sessions and build gradually. Three minutes, two or three times a day is enough in the first weeks.
If your baby resists being placed on the floor, there are several alternative positions that still count:
- Tummy to tummy: Lie in a reclined position and place your baby face-down on your chest. This works even before the umbilical cord stump falls off and has the added benefit of skin-to-skin contact.
- Lap time: Lay your baby tummy-down across your thighs lengthwise, supporting their head. This is a good option after feeding since you’re already holding them.
- Side lying: If your baby truly won’t tolerate stomach-down positions, placing them on their side with support is a reasonable alternative that still challenges different muscles than back-lying.
Getting down on the floor at your baby’s eye level, making faces, or placing a toy just out of reach can motivate them to lift their head and engage. Even a few seconds of head-lifting counts as productive tummy time for a newborn.
What You Should See Month by Month
In the first few weeks, tummy time looks like your baby turning their head to one side and maybe briefly lifting it before setting it back down. That’s enough. Their neck muscles are just beginning to activate in this position.
By the end of month three, you should see your baby lifting both their head and chest off the surface while propped on their elbows. This is a major milestone and a sign that those daily sessions are paying off. Between four and six months, many babies start pushing up on extended arms, reaching for toys while on their stomach, and eventually rolling from tummy to back.
Once your baby is crawling and moving independently, structured tummy time sessions become less critical because they’re naturally spending time in various positions throughout the day. But any time your baby is awake and on their belly, whether during play or exploration, continues to build strength and confidence.
How Much Tummy Time Is Enough
The AAP’s guideline is straightforward: two to three sessions per day of three to five minutes each for newborns, building to a combined 15 to 30 minutes daily by around seven weeks. From there, more is generally better. Some babies will happily spend extended periods on their stomachs once they’re strong enough to look around and play, while others will prefer shorter bursts spread throughout the day. Both approaches work.
The research consistently shows that any tummy time is better than none, and more tends to produce better outcomes for gross motor development. If your baby tolerates only a minute or two at first, that’s still building the foundation. The cumulative effect over weeks and months is what matters, not any single session.
What Happens Without Enough Tummy Time
Babies who spend very little time on their stomachs tend to hit gross motor milestones later. The systematic review of over 4,200 infants found clear associations between low tummy time and slower development of rolling, crawling, and overall motor skills. These babies also showed higher rates of skull flattening from prolonged time on their backs.
This doesn’t mean a baby who misses some tummy time will have permanent delays. Most children catch up eventually. But consistent tummy time gives your baby the best opportunity to build strength on a typical timeline, and it costs nothing more than a few minutes on the floor each day.