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Made for little dreamers

84 x 43cm Crib Mattresses

Browse our range of 84 x 43cm Crib mattresses, handcrafted in the UK for your baby's comfort and safety.

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A white wooden swinging crib beside a bed in a warm blush bedroom
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Not sure which size?
Length × width in cm

A little checking, a confident fit.

Start with the mattress dimensions and maximum thickness specified by your cot's manufacturer. Check the internal mattress space, rather than the outside of the frame or an old mattress.

120 × 60cm is a common cot size; 140 × 70cm is a common cot-bed size. These are guides, not a guarantee of fit. Never fill a gap with padding.

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Find the difference that matters to you

Compare mattresses

Compare the core materials and construction. Choose based on your material preferences, and always check the fit specified by your furniture manufacturer.

Crib mattresses

The Surestart

High-density foam crib mattress with waterproof protection

Inside
Foam
Depth
5cm
Cover & included items
1 × Coolmax & Maxispace cover
Selected size
84 x 43cm

£68.95

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Crib mattresses

The Dependable

Natural coconut coir with luxury lambswool for your baby's crib

Inside
Natural coconut coir with lambswool
Depth
5cm
Cover & included items
1 × Coolmax & Maxispace cover
Selected size
84 x 43cm

£91.95

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Here to help

A little advice for the journey.

All advice
Product Guide

The Complete Guide to Next-to-Me Cribs and Mattresses

Everything you need to know about next-to-me cribs and choosing the right mattress.

Read the guide
Company News

NightyNite Brand Update - Same Great Products, New Name

If you're looking for NightyNite baby mattresses, you're in the right place. We've rebranded but our quality products remain exactly the same.

Read the guide
Common Questions

Why Is My New Mattress Noisy? Will It Keep My Baby Awake?

Understanding why new mattresses make noise and whether it's a problem.

Read the guide

Choosing safely

Choose a firm, flat mattress with waterproof protection and a correct fit.

Standard delivery

Free standard delivery on orders of £30.00 or more. Usually ready to dispatch in 1–2 working days, then sent with DHL’s next working day delivery service. Delivery information.

Expert Service

Our friendly team is here to help you navigate your baby's sleep journey.