MemoryTeen 18cm Deeper Kids Mattress
- 4 cm memory foam on a 14 cm foam base
- Deeper 18 cm build for teens and adults
- Medium-firm support
- Removable, washable stretch-knit cover
Good for
- Teenagers' beds
- Guest beds
- Divans
- Standard height beds
Made in Britain by a British manufacturer
Free weekday delivery on a date you choose in your basket
Arrives rolled and boxed, easy to carry upstairs
- Depth
- 18 cm
- Guarantee
- 1 year
- Firmness
- Medium-firm, 7/10
- Family-run UK business
- Free delivery to mainland UK
- Pay by card, PayPal, Apple Pay or Google Pay
- Secure checkout
The Millie & Jones MemoryTeen 18 is our deeper memory foam mattress for older children, teenagers and adults. At 18cm, it suits floor-level beds (singles, small doubles, doubles and kings, divans and guest beds) and high sleepers or other raised beds that take a mattress up to 18cm deep.
It's built in two layers: 4cm of high-density memory foam on top and a 14cm foam support base beneath. The memory foam moulds to the body and eases pressure points, and the deep base keeps the sleeper evenly supported. It comes out medium-firm, cushioned on the surface and firm underneath, and there are no springs to creak.
On a bunk bed, high sleeper or mid sleeper, check the bed's maximum mattress depth first. The guard rail is designed around that maximum, so only use the Millie & Jones MemoryTeen 18 on a raised bed that takes a mattress up to 18cm deep; if your bed's maximum is 15cm, choose one of our 15cm mattresses instead.
The soft stretch-knit cover comes off and goes in the wash, and a non-slip base fabric helps keep the mattress in place. It's made in the UK and tested to BS 7177 (low hazard) by an independent UKAS-accredited laboratory. It arrives vacuum-packed, rolled and boxed, so it's easy to get upstairs; unroll it and give it time to expand before it's slept on. It comes in single, small double, double and king sizes, and carries a 1-year manufacturer's guarantee.
Key facts
- Depth: 18cm
- Sizes: Single 90 x 190cm, Small Double 120 x 190cm, Double 135 x 190cm, King 150 x 200cm
- Weight: About 10kg for a single, about 15kg for a double
- Layers: 4cm high-density memory foam, 14cm foam support base
- Springs: None, it's all foam
- Firmness: Medium-firm
- Cover: Soft stretch-knit, removable and washable, with a non-slip base fabric
- Suits: Floor-level single, small double, double and king beds, divans and guest beds, and raised beds that take a mattress up to 18cm deep
- Fire safety: Meets BS 7177 (low hazard), tested by a UKAS-accredited laboratory
- Made in: The UK
- Arrives: Vacuum-packed, rolled and boxed
- Delivery: Free to mainland UK, on the date you choose in your basket
- Guarantee: 1-year manufacturer's guarantee
Will it fit your bed?
Choose the size your bed's page asks for: the single, small double and double are UK sizes (90, 120 and 135cm wide, all 190cm long), and the king is 150 x 200cm. On a bunk bed, high sleeper or mid sleeper, only use it if the bed takes a mattress up to 18cm deep; if the bed's maximum is 15cm, choose one of our 15cm mattresses.
Questions parents ask
Can I use it on a high sleeper or bunk bed?
Yes, if the bed takes a mattress up to 18cm deep. If the bed's page gives a 15cm maximum, choose one of our 15cm mattresses instead.
Is it all foam?
Yes. It's 4cm of high-density memory foam over a 14cm foam support base, with no springs.
Does the cover come off for washing?
Yes. The stretch-knit cover is removable and washable.
What's Included
- Millie & Jones MemoryTeen 18 mattress in your chosen size, with its removable cover
- Depth
- 18 cm
- Firmness
- 7 out of 10, Medium-firm
- Construction
- 4 cm memory foam over a 14 cm foam base, no springs
- Cover
- Soft stretch-knit, removable and washable, with a non-slip base
- Good for
- Teenagers' beds, Guest beds, Divans, Standard height beds
- Arrives
- Rolled and boxed
- Guarantee
- 1 year
- Fire safety
- Meets BS 7177 (low hazard)
- Made in
- Britain
Free weekday delivery on a date you choose in your basket
At Millie & Jones, we make delivery simple and flexible. Once you add your items to your basket, you can choose your preferred delivery date for free, whether that’s tomorrow or up to 4 months in advance. Need extra time? We’ll hold your order until you’re ready, so it arrives exactly when it suits you. You’ll get tracking updates and a delivery time slot before your delivery day, so you’ll know when to expect it.
Read more about how delivery works on our delivery information page.
Tell us within 14 days of delivery if you change your mind, then return it within a further 14 days. Return costs are yours.
For hygiene reasons we can't take back a mattress that has been removed from its sealed protective packaging, unless it's faulty. If it arrives faulty or damaged, you can reject it for a refund within 30 days of delivery.
To start a return, email support@millieandjones.co.uk with your order number. Full details are in our returns and refunds policy.
It arrives rolled. Unbox it soon after delivery, in the room it's going in. Lay it on the bed, cut away the wrapping carefully and let it unroll. Give it time to recover its full shape before you sleep on it.
Rotate it head to toe regularly so it wears evenly, and turn it over only if it's double-sided. A waterproof protector keeps it clean and fresh for longer.
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Real People to Talk To
Not sure which mattress or depth suits the bed? Message our family team on WhatsApp before you order.
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Buy With Confidence
Every product includes a manufacturer guarantee. If something's not right, we'll make it right.
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Delivered Free, On Your Schedule
Free delivery to mainland UK. Choose a date that works for your schedule.
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Set Up & Ready to Sleep
On selected beds, add assembly on the bed's page and a two-person team will build it in the room of your choice and take the packaging away. For any other bed, you can book a local assembler through Taskrabbit.
