Best Cot Mattresses Deals Online in the UK (24 Deals Found)

Last Updated - 23/09/2026 Sort By:

Best Choice
Mother Nurture

New
Mother Nurture Classic Eco Fibre Cot Bed Mattress - Hypoallergenic Easy Clean Quilted Cover, Reversible, Water Resistant
BSI STANDARD CERTIFIED - Sleep soundly with peace of mind knowing that our baby cot bed mattress meet rigorous British S

£43.61
Mother Nurture

New
Mother Nurture Eco Fibre Cot Bed Mattress (120 x 60cm x 10cm) Breathable Baby Cot Mattress for Comfy Night’s Sleep, Reve
BSI STANDARD CERTIFIED: Sleep soundly with peace of mind knowing that our baby cot bed mattresses meet rigorous British

£34.99
New
Toddler Eco Fiber Cot Bed Mattress 120x60x10cm Firm Foam Anti Allergy UK Made
Premium Eco Fiber Cot Mattress – Safe, Supportive & Comfortable.

£54.89
Mother Nurture

New
Mother Nurture Classic Eco Fibre Cot Bed Mattress -Reversible, Water Resistant, Baby Cot Mattress, Firm & Supportive, Hy
BSI STANDARD CERTIFIED - Sleep soundly with peace of mind knowing that our baby cot bed mattress meet rigorous British S

£37.75
New
Premium Cot Mattress 120 x 60 x 10 cm Removable Cover– Extra Thick, UK Made
Premium Travel Cot Mattress 120 x 60 x 10 cm – Extra Thick, UK Made – Ultra Comfort & Support.

£22.50
Foam & Upholstery Warehouse

New
Toddler Cot Mattress Eco Fiber 120 x 60 x 10 cm – Extra Thick Baby Mattress for Cot Beds – Quilted Polycotton Anti-Aller
Compatible with Popular Brands – Designed to fit travel cots and toddler beds from top brands like Red Kite, Hauck, Grac

£25.79
Best Value
Foam & Upholstery Warehouse

New
Toddler Cot Mattress 140 x 70 x 10 cm – Extra Thick Baby Mattress for Cot Beds – Quilted Polypropylene Cover – Firm Foam
Compatible with Popular Brands – Designed to fit travel cots and toddler beds from top brands like Red Kite, Hauck, Grac

£29.49
New
TODDLER COT BED MATTRESS FOAM MATRESS FOR MAMAS & PAPAS 400 140 x 70 x 10cm
This Mattress is fully compatible With MAMAS & PAPAS Cot Bed.

£29.26
Mother Nurture

New
Mother Nurture Classic Eco Fibre Travel Cot Mattress (95 x 65cm x 7.5cm) Hypoallergenic, Breathable Mattress For Comfy N
BSI STANDARD CERTIFIED: Sleep soundly with peace of mind knowing that our baby cot bed mattress meets rigorous British S

£26.51
New
COT BED BABY TODDLER QUILTED MATTRESS WATERPROOF BREATHABLE COMFORT BABY SLEEP
FIRM & SUPPORTIVE - With our EcoLoft Fibre core baby will sleep soundly on our firm and supportive cot mattress.

£19.00
Twinklesleep

New
Twinklesleep Hypoallergenic Baby Cot Mattress, 140 x 70 cm, 10 cm Thick
GENTLE SLEEP ENVIRONMENT: Our baby cot bed mattress offers a safe, snug sleeping haven for your baby; the soft Kidtech c

£37.99
25% Off
Tutti Bambini

New
Tutti Bambini Sprung Baby Cot Bed Mattress 140x70cm
SLEEP SOUNDLY ON SUPPORTIVE SPRINGS - Watch your little one sleep soundly in a natural sleeping position on Tutti Bambin

£60.00 £79.99
New
15cm Thick Waterproof Cot Bed Mattress 120x60 & 140x70 Anti Allergy
MHG Textiles Baby Cot Bed Mattress Waterproof Breathable Hypoallergenic Firm Support with Removable Washable Zipped Cove

£42.70
BUY ALL HERE

New
BUY ALL HERE Crib Cot Bed Mattress - comes with Super Soft Breathable Water Resistant Quilted Cover, Removable Washable
Super Soft High Quality Foam Mattress is designed to provide ultimate comfort for your little one

£23.17
New
Baby Toddler Cot Bed Breathable Mattress Quilted Waterproof Mattress All Sizes
It is supportive, comfortable & soft - perfect for longer sleep.

£14.50
Mother Nurture

New
Mother Nurture Classic Eco Fibre Cot Bed Mattress - Reversible, Water Resistant, Baby Cot Mattress, Firm & Supportive, H
BSI STANDARD CERTIFIED - Sleep soundly with peace of mind knowing that our baby cot bed mattress meet rigorous British S

£32.58
New
Quilted Eco Fibre Cot Bed Mattress 140 x 70 x 10 cm – Hypoallergenic Baby Mattre
Our Soft and comfortable supportive foam mattress is ideal for a Cot or Cot bed.

£29.49
New
TODDLER BABY COT BED POCKET SPRUNG MATTRESS QUILTED COVER MATTRESS 140 x 70 CM
BABY COT BED TODDLER QUILTED MATTRESS COT BED POCKET SPRUNG MATTRESS 140 x 70xm.

£46.99
New
Cot Bed Mattress 160 x 80 x 13,140 x 70 x 13 & 8 more Sizes,FAST Post A+ Quality
Soft Baby / Child Safe Foam Cot Bed Mattress.

£37.99
New
Anti Allergy Waterproof Cot Bed Mattress Quilted Soft Breathable Thick Mattress
Keep your baby dry, comfy, and well-rested with ourQuilted Waterproof Cot Bed Mattress - designed with both protection a

£26.54
New
Baby Cot, Bedside Cot with Mattress, One-Step Folding Sturdy, stable build with
ONE-STEP FOLDING SYSTEM – Designed for easy setup and quick folding with a simple one-step folding system.

£139.99
New
Silentnight Fibre Cot Mattress 120x60x10cm Firm Baby Nursery
Silentnight Fibre Cot Mattress – 120 × 60 × 10cm.

£49.99
New
Baby Elegance White Cot Mattress 124 x 65cm Clouds Eco Washable Anti-Allergy
Baby Elegance White Cot Mattress 124 x 65cm Clouds Eco Washable Anti-Allergy

£73.50
New
Large Cot Mattresses 160 x 70 cm Toddler Infant Comfort Sleep Foam Quilted
Mattress made from nursery grade high resilience foam Manufactured using hypo allergenic & Fire retardant foam Surrounde

£63.69

24 Cot Mattresses deals are available from: Amazon, eBay stores, starting from £14.50.
The biggest discount we found is 25% on Tutti Bambini Sprung Baby Cot Bed Mattress 140x70cm at Amazon.
The lowest price we found is £14.50 while the highest is £139.99.
Prices for the best Cot Mattresses deals average at £41.79.
Last updated on September 23, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Cot Mattresses.