Play mats are the least exciting thing in a playroom and the first thing you should buy. Nobody photographs the mat. But it's what makes everything else safe to fall off, and it's the difference between soft play working on a laminate floor and sliding across it.
This guide covers what foam play mats actually do, what thickness matters, square versus round, and how they compare to the foam jigsaw tiles you'll see everywhere online.
What a foam play mat is for
Three jobs, in order of importance:
- Impact absorption. A climbing toddler will come off a block set. High-density foam under a velour cover takes that landing in a way carpet doesn't and laminate really doesn't.
- Grip. This is the one people miss. Soft play blocks, rockers and ball pits all slide on hard floors. A mat underneath holds the whole arrangement in place.
- Tummy time and floor play. Before any of the climbing starts, a mat is simply a warm, clean, padded surface for a baby to lie on — warmer than a floor, and defined in a way that helps a baby settle.
Thickness and density: what actually matters
Thickness gets advertised; density decides whether it works. A thick low-density mat compresses to nothing under a knee and gives you no protection at all. A thinner high-density mat outperforms it.
The test: press down hard with the heel of your hand. If you feel the floor, it won't protect a falling child. Good foam resists and springs back.
The second thing that matters is the cover. Velour and velvet covers are warm to lie on, soft against skin, and — critically — removable and washable. A mat with a fixed cover has a limited life, because eventually something gets spilled on it that a damp cloth won't fix.
Square or round?
Square mats tile together, sit flush against walls and into corners, and give you the most usable surface per square metre. If you're building a defined play area or want to grow the coverage over time, square is the practical choice.
Round mats are softer in a room and work well as a single standalone piece — a tummy-time spot in a living room, or a base under a rocker. They don't tile, so they're less suited to covering a large area.
A common setup: one round mat as a baby's own space, then square mats added later as climbing equipment arrives.
Foam mats vs interlocking jigsaw tiles
The EVA foam jigsaw tiles sold cheaply everywhere are a different product, and worth being clear about:
| Covered foam mats | Jigsaw tiles | |
|---|---|---|
| Impact protection | Genuine cushioning | Thin, minimal |
| Cover | Removable, washable | None |
| Small parts | None | Pop-out shapes can be chewed |
| Look | Furniture-like | Obviously a play surface |
| Cost | Higher | Low |
Jigsaw tiles are fine as a floor covering for a garage or a playroom you don't mind looking like one. They are not impact protection under climbing equipment, and the pop-out letter and number inserts are a known choking risk for under-threes.
How many mats do you need?
Cover the landing zone, not the whole room. As a guide:
- Under a rocker or a small block set: one or two mats.
- Under an 11-piece castle set or a step and slide set: four to five mats, covering the full footprint plus a metre where a child slides or climbs down.
- A defined nursery play corner: five or more, tiled to the walls.
Buying a set works out better than buying singles if you need more than three.
Cleaning and care
Unzip the cover and machine wash cool, then air dry — not on a radiator, which shrinks velour covers onto foam that no longer fits. Spot-clean between washes with warm water and mild detergent.
Stand mats on edge occasionally rather than leaving them flat for months. Foam left permanently flat on a cold floor can hold damp underneath.
Our play mats
All in high-density foam with removable, washable velour covers, with UK delivery.
- Square Play Mat, Light Pink Velvet — £130
- Square Play Mat, Light Grey Velvet — £130
- Round Play Mat, Light Pink Velvet — £130
- Round Play Mat, Light Grey Velvet — £130
- 5-Piece Play Mat Set — £199. The best value option if you're covering a real play area, and the one nurseries usually choose.
Frequently asked questions
Do I need a play mat under soft play equipment?
On carpet it's optional. On laminate, tile or wood it's strongly recommended — both for impact protection and because blocks, rockers and ball pits slide on hard floors without one.
What thickness should a baby play mat be?
Density matters more than thickness. Press hard with the heel of your hand: if you can feel the floor through it, it won't protect a falling child, however thick it is.
Are foam jigsaw tiles as good as play mats?
No. They provide minimal impact protection, can't be washed, and the pop-out shapes are a choking risk for under-threes. They're a floor covering, not safety matting.
How many play mats do I need?
One or two under a rocker, four to five under a castle or step and slide set, and five or more for a defined nursery play corner. Cover the landing zone plus a metre where children come down.
Can you wash a foam play mat?
Yes — unzip the cover and machine wash cool, then air dry away from direct heat. Spot-clean the foam itself with warm water and mild detergent.
Browse all play mats, or read our guides to castle block sets and ball pits for what goes on top.