The Core: Pillow & Mat

Designed by a pediatric osteopath

Build your baby's strength and development with the kit osteopaths use in clinic.

The Core is a guided exercise program for your baby's first months. A set of daily exercises and stretches, and the pillows that make each one possible at the right angle.

Reserve now, no payment today. First shipments from July.

Reserve your Core.

Join the waitlist. We'll email when The Core opens for reservation.

Join the waitlist

Reserve your Core

Join the waitlist. We'll email when The Core opens for reservation.
Osteopath-designed
Safe Materials
Patent Pending
Secure Checkout
Ships from July (MY & SG), Aug (EU & UK)
Free returns

A daily practice, not a prop.

The Core comes with a set of guided exercises. Here are some of them.

Elevated tummy time

The pillow lifts the chest so your baby can push up sooner and longer, with less strain.

Upper back and pectoral stretches

Paired pillows open the angle used to release tension across the chest and upper spine.

Lumbar stretch

Supported positioning to gently mobilise the lower back during massage.

Early rolling

Guided movement that builds the rotation your baby needs to roll on their own.

Leg stimulation

Hands-on work that wakes up the muscles your baby uses to kick, push and bear weight.

Early anterior chain stimulation

Gentle activation of the front-body muscles your baby recruits to lift the head, reach and roll.

Early crawling

Weight-bearing and reach work that lays the foundation for crawling.

Every exercise comes with a video that walks you through the setup, the movement, and what to look for, so you can do it with confidence at home.

Two halves of one system.

The Core is two things built for each other: a program of exercises, and the pillows that hold each one at the right angle.

The exercises are the work. A guided practice for your baby's first six months, the same positions, stretches, and early movement Nicolas runs in clinic. The pillows are what make that work possible at home. Every exercise has an angle, and the pillows hold it so your hands stay free to guide your baby.

Look at any exercise in the program and you see the same thing: your baby on the pillows, the work happening on top. The practice and the kit are one purchase because they're one system.

The exercises

See every exercise before you start.

A photo for each exercise in the program, the same positions Nicolas runs in clinic. The full step-by-step library opens with the QR code in your box.

Elevated tummy time
Exercise 1

Elevated tummy time

The program that comes with your Core.

Every Core opens a complete video library, filmed by Nicolas. Each exercise from start to finish: how to set up the pillows, how to do the movement, and what to watch for in your baby as you go. The positions in the gallery, demonstrated step by step, so you can run them at home with the same confidence as in clinic.

The library lives in your free Fulkrum Community account, opened by the QR code in your box. That's where the videos are, alongside care guides, direct support from our team, and the other parents working through the same exercises with their babies. The program has a home, and your Core comes with the key.

The Core · The setup

Two pillows. One mat. Every exercise, set up right.

The pillows hold each position at the right angle. The mat gives you the firm, clean surface to work on. Together they're the setup behind every exercise in the program, sized for your baby's first six months and certified for use up to nine.

Reserve your Core
The Core: Pillow & Mat

Where the real work happens.

Everything that matters in the first six months happens on the floor. Tummy time. Stretching. Massage. Early rolling and crawling. The slow build of strength through the whole body, and the daily practice that gets you there.

What makes that work effective is the angle. The right support under the chest changes what tummy time does. Paired positioning opens stretches you can't hold with your hands alone. Rolling and crawling stimulation depend on the body being held in exactly the right place while you guide the movement.

The Core is the kit built to hold those angles, so you can focus on doing the exercise with your baby.

For years I've been teaching parents how to support their baby's development at home. The exercises, the stretches, the daily practice. It works. Parents see the difference, babies thrive, and the message has reached millions of families.

There was always one gap. The work I teach is physical. It happens at specific angles, with the baby held in specific positions, while the parent does the exercise. And the props parents reach for at home were made for comfort, not for this. I'd watch parents do everything right and still get less from the work than they could, because the support underneath the baby was quietly working against them.

The Core closes that gap. These are the exact pillows I use in clinic, paired with a full set of exercises any parent can follow at home. It's the missing piece of everything I've been teaching all along.

Nicolas GrimaldiPediatric osteopath, founder of Fulkrum
See the full method

What's in the box.

Baby in supported tummy time position on The Core

The pillows.

A matched pair, used from the first week through the full six months. Cotton and polyester cover over a memory foam core. Removable, machine-washable cover; non-slip underside.

The mat

The mat.

Cotton and polyester cover over a silicone foam core. Firm, sized to seat both pillows, non-slip underside. Removable, machine-washable cover.

The laundry bag

The laundry bag.

100% cotton. Pack the kit to take it with you, or store the covers in it on wash day.

A practice that grows with your baby.

The exercises change as your baby develops. Every one is demonstrated in the video library that comes with your Core.

1

Weeks 1 to 6. Early positioning.

Short sessions of elevated tummy time on a single pillow. Both pillows together for the early stretches and newborn massage. A few minutes at a time, several times a day, building strength from the start.

2

Weeks 6 to 12. Strength.

Tummy time gets longer and less assisted as your baby's own strength comes in. Both pillows stay in play for specific stretches and release work. Massage adapts to your baby's growing tone.

3

Months 3 to 6. Movement.

Your baby is pushing up, propping, starting to roll. The exercises shift to early rolling, leg stimulation, and crawling preparation. Both pillows support the transitions; the mat gives room to move.

Every baby develops at their own pace. The Core is sized for active use through six months and certified for use up to nine, so the kit stays with you as long as your baby needs it. For supervised exercise on the floor only. Every exercise is demonstrated in the video library included with your purchase.

Used in clinic. Built for home.

The Core was prototyped, tested and refined inside the clinic before it was ever offered to families.

“The head control improvement was visible after just three weeks. The tummy time sessions are longer and more engaged.”

Elena Clinic user

Reserve your Core.

Shipping in July to Malaysia and Singapore, and from August to the European Union and United Kingdom. No deposit to reserve. We'll confirm your order when it's available in your region.

Reserve your Core

QUESTIONS BEFORE YOU RESERVE

Questions before you reserve.

Clear answers to common questions, so you can understand whether Fulkrum is right for you.

The first shipment goes out in July for Malaysia and Singapore, and in August for the European Union and United Kingdom. More regions are coming. If yours isn't listed yet, leave us your email and we'll let you know the moment we can ship to you.
No deposit at reserve. We'll come back to you when we're ready to ship to confirm your order and take payment then. If anything changes with the timeline, we'll let you know directly before we charge anything.
Your reservation costs nothing and commits you to nothing. We'll confirm your order with you when we're ready to ship, and you can decide at that point whether to proceed.
Pillows. Memory foam core with a removable cotton and polyester cover. Non-slip underside. Mat. Silicone foam core with a permanent cotton and polyester cover. Non-slip underside. Laundry bag. 100% cotton. The Core is certified for sale in the European Union and the United Kingdom, in conformity with their respective product safety and chemical safety regulations. Full safety documentation is available on request. The Core is designed for awake, supervised use only on a flat, stable surface. It is not a sleep product.
Because most of the techniques Nicolas teaches require two. Paired support during positioning, mirrored angles for stretching, a second point of contact during massage. A single pillow gets you partway. Two unlock the full range of what the method is designed to do.
The Core is designed for daily use from birth through six months, the period when most of Nicolas's foundational work happens. It is sized and certified for use up to nine months, so the kit stays with you for as long as your baby needs it. Some babies finish using it earlier, others continue longer. Both are normal.
Daily use is most concentrated in the first six months, when tummy time, positioning work, stretching and massage are foundational. Many families continue using the kit into months seven, eight and nine for stretching and movement support as the baby develops. Every baby develops at their own pace, and The Core is sized and certified to stay useful across that range.
No. The Core is for supervised tummy time, positioning, stretching and massage. It is not a sleep product, and babies should not be left unattended on or around the kit. The labels on every component carry the same guidance.
Every Core comes with a complete video library. Nicolas walks you through every position, every stretch, and every massage sequence the system was designed for. Access is by QR code printed inside the box, with a short quick-start guide on paper for the first day. You'll have everything you need to use the Core well, whether you're new to Nicolas's work or have been following it for years.
No. Every Core comes with free access to the Fulkrum Community, where your video library lives, along with care guides, troubleshooting documents, and direct support from our team. You don't need a paid membership to use the Core or follow the videos. Many parents who buy the Core go on to join the paid tier for deeper clinical content and stage-by-stage guidance, but it isn't required.
We currently ship to Malaysia and Singapore from July, and to the European Union and United Kingdom from August. Other regions are coming. If your country isn't on the list yet, leave us your email and we'll let you know as soon as we can ship to you.
The pillow covers and the mat cover are machine washable on a cold gentle cycle. The foam inserts inside the pillows are hand-wash only and should be dried flat. The full set of care instructions is printed on every component label and included in the box.