Tummy time: how much, from when, and what to do when they hate it

Tummy time is the rare piece of baby advice that is both universally given and almost never given with a number attached. Parents leave hospital knowing they are supposed to do it, with no idea whether that means two minutes or twenty, from what age, or what to do about a baby who treats the floor as a personal insult.

There are numbers, and they are smaller than most people expect. What follows is what the AAP and the NHS actually say, why the figure is a daily total rather than a session length, and the practical version for a baby who hates it.

What tummy time is for

A baby who sleeps on their back — which is where they should sleep — spends most of the day with the back of the head against a surface and the front of the body doing nothing. Tummy time is the counterweight. The NHS describes it as building the muscles of the back, neck and shoulders, and the AAP says it prepares babies for sliding on their bellies and crawling.

Three things come out of it, and they arrive in this order:

• Head control. The first thing that has to happen is lifting the head at all, then holding it up, then turning it while it is up. Everything else is built on this.
• Shoulders and arms. Pushing up on the forearms, then on the hands. This is what makes reaching, rolling and eventually crawling possible.
• A different view. Less measurable and not nothing — the NHS mentions it directly. A baby on their front sees the room from an angle they get no other way, and the reaching that follows is what develops the muscles for rolling and scooting.

How much, and from when

The AAP is specific about the start and about seven weeks, and the NHS is specific about the rest of the first year. Put together:

The first row is arithmetic rather than a published range: two to three goes at three to five minutes is six to fifteen minutes, and it is worth saying so plainly. Nobody publishes “a newborn needs nine minutes”, because nobody means it that precisely.

Why it is a total, not a session

This is the part that most changes how it feels. Thirty minutes a day sounds like a thirty-minute session, which is an ordeal for everyone and impossible with a young baby. It is not what is being asked. The NHS phrase is “spread throughout the day”, and the AAP builds its figure out of short goes from the start.

Thirty minutes a day is any of these:

• Six goes of five minutes
• Ten goes of three minutes
• Two minutes after every nappy change, across a normal day
• Twenty on the floor when they are in the mood, and the rest on a chest

The last one matters. There is no bonus for consistency of format, and a baby who tolerates five minutes on a Tuesday and forty seconds on a Wednesday is having a normal week.

The first weeks, in practice

The AAP suggests two natural slots: after a nappy change, and when they wake from a nap. Both are useful because they are already happening — a session that has to be remembered gets forgotten, and a session attached to something that occurs eight times a day does not.

• Chest first. The NHS suggests lying your baby on your chest, and only while you are wide awake and unlikely to fall asleep. A newborn who will not tolerate a mat will often tolerate this for minutes at a time.
• Get down to their level. Face to face, on the floor, close enough to be in focus. A newborn sees clearly at roughly the distance from your chest to your face, and a face is more motivating than any toy.
• A firm, flat surface. A play mat or a blanket on the floor. Soft, sinking surfaces make the work harder and are the wrong place to leave a baby who might turn their face down.
• Awake and watched, every time. Both bodies are explicit about this. Tummy time is a supervised activity for an alert baby, and it ends when they stop being either.
• Not straight after a feed. Pressure on a full stomach reliably produces the outcome you would expect.

When they hate it

Most babies protest at first, and a fair number protest for weeks. The instinct is to grit your teeth and wait it out, on the theory that they need to get used to it. The better move is the opposite: end the session before the crying, and do another one sooner.

• Shorter and more often. Thirty seconds, ten times, beats five minutes of screaming once. The total is identical and the association is completely different.
• Change the surface. Chest, lap, forearm, across your knees while you sit. A baby lying along your forearm facing down is doing the same neck work with the security of being held.
• Prop the chest slightly. A rolled towel under the armpits, arms forward over it, lowers the difficulty without removing the work. Many babies who refuse flat will accept this.
• Give them something to look at. A mirror, a high-contrast card, your face. Reaching for something is what the NHS describes as developing the muscles for rolling and crawling — so the toy is not a bribe, it is the exercise.
• Pick the good hour. After a nap, mid-morning, after a nappy change. Not at the end of a long wake window when everything is already going badly.
• Stop before the crying. This is the whole technique. A baby who has never been left crying on their front learns the position is survivable much faster than one who has.

What counts, and what does not

The right-hand column is not wasted time and some of it is genuinely useful — being held upright does work for the neck too. It is simply not the same thing, and a day made entirely of car seats, bouncers and slings is a day with no tummy time in it.

Flat spots on the head

A newborn skull is soft and spends a great deal of time against a mattress, so flattening at the back is common. The AAP is reassuring about it: although a baby can develop a flat spot, it usually rounds out as they grow older and sit up.

What helps, in order of how much difference it makes:

• Time off the back of the head — which is what tummy time is, mechanically
• Varying which end of the cot you lay them down at, so they turn their head both ways
• Alternating the arm you feed and carry them in
• Less time in car seats and bouncers than a busy week tends to produce

What is worth showing to a professional rather than managing at home: a flat area that keeps getting worse rather than better, a head that looks asymmetrical from above rather than flattened evenly at the back, or a baby who strongly prefers turning their head to one side and resists the other. That last one can be a tight neck muscle, and it is treatable — earlier being easier than later.

Back to sleep, tummy to play

These two instructions are given together, and they are not in tension. Sleep happens on the back — the AAP puts it as healthy babies being safest sleeping on their backs at night and for naps, even short ones. Play happens on the front, awake and watched.

Tummy time is not a way of getting babies used to sleeping on their front, and it is not a halfway position on the safe sleep advice. If your baby falls asleep during a session, the session is over: turn them onto their back.

Once a baby rolls onto their front by themselves during sleep, having been put down on their back, the advice changes — that is a baby with the strength to move their own head, which is precisely what the floor work built.

What tummy time will not do

It builds strength. It is not a schedule accelerator, and treating it as one is how a reasonable habit becomes a source of anxiety.

• It does not put a date on rolling, sitting or crawling. Those arrive across wide ranges, and the ranges are wide for reasons that have little to do with floor minutes — see milestones by age for what actually varies.
• A missed day is a missed day. Nothing regresses over a weekend, and there is no deficit to make up with a long session on Monday.
• More is not proportionally better. Past the point where a baby is doing floor time happily, the extra minutes stop being the constraint.
• It does not replace being carried, held and talked to, which is doing a different and larger job.

When to ask

Speak to your GP, health visitor or paediatrician if:

• Your baby cannot lift their head at all while on their front by around three to four months
• Their head control is going backwards rather than forwards
• They consistently turn their head to one side only, or resist turning to the other
• One side of the body seems to work noticeably harder than the other
• A flat spot is getting worse rather than better, or the head shape looks asymmetrical
• They feel unusually stiff, or unusually floppy, when you handle them
• Tummy time causes distress far beyond the usual protest, every single time, for months

None of these mean something is wrong. They mean the question is better answered by someone who can put hands on your baby than by a chart — and a tight neck muscle, which is the most common finding, responds well to physiotherapy and responds better early.