A good kids mattress will guarantee your child is well supported while they are asleep and will benefit their growth. So that’s why here at MattressNextDay, we are delighted to have in stock Silentnight's Healthy Growth mattress selection, with each model designed to elevate your child’s sleep quality.
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Verified
Wow, excellent mattress, second time ive used this company. 48 hours and mattress was with me (my choice) they keep you updated throughout the progression of your delivery. Phoned when 30 mins away and again when really close to check directions.Really polite, helpful delivery staff.Highly recommend, infact I have recommended again.
Verified
We bought a european size mattress for an old ikea bedframe (as ikea don't sell these any longer nor are they stocked on the high street), which meant a longer than usual delivery time scale, but this was made very clear before ordering. The mattress arrived before the expected date, we had a choice of date & the delivery arrived within the specified slot. The delivery guys were efficient, friendly & helpful. The mattress was exactly as described and we love it!
Verified
Exceptional service everything was delivered as promised. Calls/ text to notify me of delivery and everything was done on time with efficient collection of old mattresses and delivery of the new. It actually arrived before the allocated time slot! mattresses was everything I expected.
Silentnight mattresses are renowned for their innovative designs and abundance of comfort, providing you the perfect ingredients for a great night’s sleep. The same applies to their kids' and cots' mattresses, with their Healthy Growth models being the best for children. With options of reflex foam, open coil springs, Miracoil® springs and even memory foam, you have plenty of choices to choose from to find the perfect bed for your little one.
Silentnight’s Healthy Growth range is great for children and toddlers because of the number of properties they have for a smooth sleeping experience. These mattresses are hypoallergenic to prevent allergies from surfacing as well as accommodating Eco Comfort Fibres that keep your child cool and refreshed whilst they sleep. Furthermore, they have a quilted cover for extra comfort, and for your peace of mind, they are foam and chemical treatment-free.
You can see for yourself why parents love these mattresses for their children by ordering one today. And you won’t have to wait long to find out, as we offer free next day delivery across the UK mainland.
In terms of dimensions, a Silentnight cot bed mattress measures 70cm wide and 140cm long.
Still not decided on which cot bed mattress to get for your child? For more information and advice, read our cot bed mattress guide.
| Size | Imperial | Metric |
|---|---|---|
| Cot Mattress | 3'9" x 1'9" | 120cm x 60cm |
| Cot Bed Mattress | 4'6" x 2'3" | 140cm x 70cm |
| Adjustable Small Single | 2'6" x 6'6" | 75cm x 200cm |
| Adjustable Single | 3' x 6'6" | 90cm x 200cm |
| Adjustable Small Double | 4' x 6'6" | 120cm x 200cm |
| Adjustable Double | 4'6" x 6'6" | 135cm x 200cm |
| Small Single | 2'6" x 6'3" | 75cm x 190cm |
| Single | 3' x 6'3" | 90cm x 190cm |
| Small Double | 4' x 6'3" | 120cm x 190cm |
| Double | 4'6" x 6'3" | 135cm x 190cm |
| King Size | 5' x 6'6" | 150cm x 200cm |
| Super King | 6' x 6'6" | 180cm x 200cm |
| European Small Single | 2'8" x 6'6" | 80cm x 200cm |
| European Single | 3' x 6'6" | 90cm x 200cm |
| European Double | 4'7" x 6'6" | 140cm x 200cm |
| European King Size | 5'3" x 6'6" | 160cm x 200cm |
All mattress sizes given are approximate and stated sizes refer to the sleeping surface only. Mattresses sizes may vary slightly from their stated dimensions due to manufacturing tolerances, please allow +/- 2 inches (5cm).
| Support | Best for |
|---|---|
Memory Foam
|
Body moulding and pressure relieving |
Natural Fibres
|
Unrivalled comfort, naturally temperature-regulating |
Latex
|
Breathable, supportive and eco friendly |
Cool Gel Memory Foam
|
Active cooling properties, ideal for hot sleepers |
Soft White Fibres
|
Hypoallergenic polyester, soft and durable |
| Support | Best for |
|---|---|
Pocket Springs
|
Individual springs for tailored support |
Foam
|
Conforms to your body's shape, silent (no springs) |
Open Coil Springs
|
Traditional, interlinked springs |
Latex
|
Bouncy yet supportive, great for hot sleepers |
| Firmness | Best for |
|---|---|
 Softer |
Good for side sleepers, a softer level of support |
 Medium |
Good all-rounder for front, side or back sleepers |
 Medium - Firm |
Good for people who change sleeping position |
 Firm |
Good for people who sleep on their front or back |
 Extra Firm |
The firmest level of support, also known as orthopaedic |
You can spread the cost of purchases over £400 without any fees or interest thanks to our partnership with Klarna, a payment service provider.
Available payment options
18+, T&Cs apply, Credit subject to status. Bedsonline.biz Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 710091) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply. Klarna’s [Pay in 3 instalments] [and] [Pay in 30 days] are unregulated credit agreements.Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Cs and late fees apply.
*Delivery charges may apply for some areas. Please see our delivery page for more information.
1. Order by 5pm for next day delivery between Monday-Friday, 12pm on Saturday and 3pm on Sunday. The 'Order by' time may be subject to change dependant on our delivery partners.
Bedsonline.biz Ltd is authorised and regulated by the Financial Conduct Authority (FCA FRN 710091) and acts as a credit intermediary and not a lender, offering credit products provided exclusively by Klarna Bank AB (publ). Finance is only available to permanent UK residents aged 18+, subject to status, terms and conditions apply.
MattressNextDay, 116 Joseph Wilson Industrial Estate, Whitstable, Kent, CT5 3SN
