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A firm feel to support your little one's growth and development, the Silentnight Safe Nights Lullaby Breathable Cot Mattress provides a safe, healthy sleeping environment.
Completely foam and chemical-free, this mattress features a polyester core, which stays odour-free and isn't treated with harsh, strong-smelling FR chemicals. Tested to the highest UK standards, this mattress is perfect for aiding your child's growth in the healthiest environment. You can even wipe down this waterproof polyester core to maintain the cleanest, freshest sleep set-up.
A firm feel helps to keep your child's body aligned and supported, encouraging a healthy sleeping position that promotes development. A soft-touch, quilted cover finishes this cot mattress in total comfort - highly breathable, it promotes the hypoallergenic properties of the mattress and is easily removed and machine washed.
1278545-5056370883502
Silentnight 5 Year Guarantee
We know that reliability and peace of mind matter to our customers, that’s why we offer a full manufacturer’s guarantee on all of our mattresses, upholstered divan beds and headboards.
Free delivery Tomorrow, 28th July
Shop in confidence knowing our award winning delivery is hassle-free!
Free next day delivery
Choose a day & time that suits you
Old mattress removal available
Delivery to room of choice available
148,090+ Trees planted so far
148,090+ Trees planted so far
Award winning delivery
Planet-friendly disposals
Buy now, pay later with Klarna
18+, T&Cs apply, Credit subject to status
| Size | Imperial | Metric |
|---|---|---|
| Cot Mattress | 3'9" x 1'9" | 120cm x 60cm |
| Cot Bed Mattress | 4'6" x 2'3" | 140cm x 70cm |
| 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).
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
