Cot Bed Mattress Guide: Fibre vs Sprung vs Pocket Spring – Which is Best for Your Baby?

Choosing a cot bed mattress can feel like a big decision — after all, your baby will be spending a lot of time there (we hope!). To make it easier, we’ve broken down the three most popular types — fibre, sprung, and pocket spring — so you can choose the one that fits your baby and your lifestyle best.

1. Safety Comes First

No matter which mattress you choose:

• It should fit snugly in the cot bed (no gaps!)

• Be firm and supportive

• Made from breathable, baby-safe materials

• Comply with British safety standards (BS EN 16890)

2. Mattress Types: What’s the Difference?

FIBRE MATTRESS

• Lightweight and breathable

• Easy to move and clean

• Great for occasional use or as a second mattress

• Most affordable option

Best for: Spare room, grandparents’ house, or short-term use

SPRUNG MATTRESS

• Contains an open coil spring unit

• Offers more structure and support than fibre

• Bounces back well over time

• Usually more affordable than pocket spring

Best for: Everyday use with good value, especially for babies who’ll grow into toddlerhood with the same mattress

POCKET SPRING MATTRESS

• Features individually wrapped springs that move independently

• Provides excellent support tailored to baby’s movements

• Long-lasting and durable

• Often comes with extra features (dual-sided, waterproof cover, hypoallergenic layer)

Best for: Long-term use, toddlers, and families looking for maximum comfort and support

3. Bonus Features to Look For:

• Dual-sided (firmer for baby, softer for toddler)

• Removable & washable covers

• Water-resistant lining

• Hypoallergenic materials

Every baby (and every family) is different. Whether you go for fibre, sprung, or pocket spring — the best choice is the one that suits your baby’s needs and your lifestyle. Still unsure? Come chat to us in-store or online — we’re always happy to help.