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Bunk Bed Mattresses

Bunks are a classic choice for children, and they're just as popular as they were when you were a child, but now you need to make sure you choose the right bunk bed mattress to give them supportive sleep. That's where our carefully curated range comes into play! We've pulled together all our best mattresses under 16cm in height, making them suitable for the top and bottom bunk. Shop the range now and find the perfect way to enhance your child or teenager's sleep, with fast delivery and affordable finance options available!

Items 1-24 of 25

Noah Memory Foam Spring Mattress
4.8 star review
4.8
(204)
Noah Memory Foam Spring Mattress
Medium
Memory Foam
Open Coil Spring
£199.99 You Save: £50 Now From £149.99 You Save: £50
10% Off CODE: EXTRA10
Deluxe Memory Foam Spring Rolled Mattress
4.7 star review
4.7
(160)
Deluxe Memory Foam Spring Rolled Mattress
Medium
Memory Foam
Open Coil Spring
£184.99 You Save: £45 Now From £139.99 You Save: £45
10% Off CODE: EXTRA10
Ethan Spring Mattress
4.8 star review
4.8
(208)
Ethan Spring Mattress
Soft
Open Coil Spring
Made in the UK
£164.99 You Save: £40 Now From £124.99 You Save: £40
10% Off CODE: EXTRA10
Clay Orthopaedic Spring Mattress
4.8 star review
4.8
(161)
Clay Orthopaedic Spring Mattress
Medium-Firm
Open Coil Spring
Orthopaedic
£179.99 You Save: £40 Now From £139.99 You Save: £40
10% Off CODE: EXTRA10
Theo Pocket Spring Mattress
4.8 star review
4.8
(208)
Theo Pocket Spring Mattress
Soft-Medium
Pocket Spring
Made in the UK
£239.99 You Save: £60 Now From £179.99 You Save: £60
10% Off CODE: EXTRA10
Ortho Sleep 1500 Reflex Foam Orthopaedic Mattress
4.8 star review
4.8
(17)
Ortho Sleep 1500 Reflex Foam Orthopaedic Mattress
Firm
Reflex Foam
Orthopaedic
£214.99 You Save: £55 Now From £159.99 You Save: £55
10% Off CODE: EXTRA10
Pocket Spring 1000 Kids Mattress
New Arrival
Pocket Spring 1000 Kids Mattress
Medium
Pocket Spring
1000 Springs
£259.99 You Save: £90 Now From £169.99 You Save: £90
10% Off CODE: EXTRA10
1
4.8 star review
4.8
(43)
Compact Gold Tufted Orthopaedic Spring Mattress
Medium
Open Coil Spring
Orthopaedic
£169.99 You Save: £40 Now From £129.99 You Save: £40
10% Off CODE: EXTRA10
Pocket Flexi 1000 Individual Sprung Recon Foam Orthopaedic Mattress
4.7 star review
4.7
(65)
Pocket Flexi 1000 Individual Sprung Recon Foam Orthopaedic Mattress
Medium
Pocket Spring
1000 Springs
£264.99 You Save: £75 Now From £189.99 You Save: £75
10% Off CODE: EXTRA10
Little Champ 800 Pocket Sprung Reflex Foam Orthopaedic Mattress
4.7 star review
4.7
(13)
Little Champ 800 Pocket Sprung Reflex Foam Orthopaedic Mattress
Medium
Pocket Spring
800 Springs
£229.99 You Save: £65 Now From £164.99 You Save: £65
10% Off CODE: EXTRA10
Fusion Lite Memory and Recon Foam Orthopaedic Mattress
4.7 star review
4.7
(15)
Fusion Lite Memory and Recon Foam Orthopaedic Mattress
Medium
Memory Foam
Orthopaedic
£229.99 You Save: £60 Now From £169.99 You Save: £60
10% Off CODE: EXTRA10
Reflex Foam Kids Mattress
5 star review
5.0
(1)
Reflex Foam Kids Mattress
Medium
Reflex Foam
Rolled
£234.99 You Save: £85 Now From £149.99 You Save: £85
10% Off CODE: EXTRA10
Flex 1000 Recon Foam Orthopaedic Mattress
4.7 star review
4.7
(49)
Flex 1000 Recon Foam Orthopaedic Mattress
Medium
Reflex Foam
Rolled
£194.99 You Save: £50 Now From £144.99 You Save: £50
10% Off CODE: EXTRA10
Deluxe Spring Kids Mattress
5 star review
5.0
(1)
Deluxe Spring Kids Mattress
Medium
Open Coil Spring
Removable Cover
£109.99 You Save: £25 Now From £84.99 You Save: £25
10% Off CODE: EXTRA10
1
4.8 star review
4.8
(24)
Compact Eclipse Pocket Sprung 800 Mattress
Soft-Medium
Pocket Spring
800 Springs
£229.99 You Save: £60 Now From £169.99 You Save: £60
10% Off CODE: EXTRA10
Superior Spring Mattress - European 3ft Single (90 x 200 cm)
4.5 star review
4.5
(4)
Superior Spring Mattress - European 3ft Single (90 x 200 cm)
Medium
Open Coil Spring
Made in the UK
£239.99 You Save: £70 Now From £169.99 You Save: £70
5 Year Guarantee
Cabin Bonnell Spring Kids Mattress
5 star review
5.0
(1)
Cabin Bonnell Spring Kids Mattress
Soft-Medium
Open Coil Spring
Made in the UK
Now From £139.99
5 Year Guarantee
Pocket Sprung Kids Mattress
4.8 star review
4.8
(4)
Pocket Sprung Kids Mattress
Medium
Pocket Spring
Hypoallergenic
£139.99 You Save: £40 Now From £99.99 You Save: £40
10% Off CODE: EXTRA10
1
5 star review
5.0
(4)
Superior Pocket Sprung Mattress - European 3ft Single (90 x 200 cm)
Medium-Firm
Pocket Spring
Made in the UK
£334.99 You Save: £110 Now From £224.99 You Save: £110
5 Year Guarantee
1
4.6 star review
4.6
(29)
Compact Membound Memory Foam Spring Mattress
Soft
Memory Foam
Open Coil Spring
£209.99 You Save: £60 Now From £149.99 You Save: £60
10% Off CODE: EXTRA10
1
4.7 star review
4.7
(31)
Compact Premier Spring Mattress
Soft
Open Coil Spring
Made in the UK
£164.99 You Save: £40 Now From £124.99 You Save: £40
10% Off CODE: EXTRA10
Platinum Sprung BUNK Mattress
New Arrival
Platinum Sprung BUNK Mattress
Medium-Firm
Open Coil Spring
Quilted
£209.99 You Save: £60 Now From £149.99 You Save: £60
5 Year Guarantee
Spring Flexi Reflex Foam Kids Mattress
5 star review
5.0
(1)
Spring Flexi Reflex Foam Kids Mattress
Medium
Reflex Foam
Rolled
£209.99 You Save: £60 Now From £149.99 You Save: £60
10% Off CODE: EXTRA10
Freshtec Kids Foam Mattress
New Arrival
Freshtec Kids Foam Mattress
Medium
Freshtec Foam
Removable Cover
£114.99 You Save: £30 Now From £84.99 You Save: £30
10% Off CODE: EXTRA10

Items 1-24 of 25

Mattresses for every bunk bed

A good night’s sleep is essential for your little ones. To help you find the perfect bunk bed mattress for them, we stock a variety of different mattress types including pocket sprung mattresses to support them as they sleep as well as memory foam and reflex foam mattresses to give them that sink-in feeling as they drift off. Of course, our mattresses are available in a selection of sizes so whether you’re shopping for a standard single bunk bed or a triple sleeper with a small double underneath, you can find exactly what you need.

Bunk bed mattresses FAQs

Giving your child all the support they need at night is very important, especially for their growing bodies. Choosing the right loft bed mattress is crucial to ensuring they get good sleep. To help make this easier, we've formulated answers to all the most frequently asked questions!

Is there a special type of mattress for bunk beds?

The only bunk bed mattress requirement is that it be no more than 16cm high. This ensures that the railings on the top bunk can prevent accidents, such as rolling out of bed. Other than that, we're happy to confirm that your child can use any mattress, whether you want to give them the support of pocket springs or the comfort of memory foam!

In our bunk bed guide, you can learn more about bunk bed safety, including choosing a mattress.

How often should bunk bed mattresses be replaced?

Although adult mattresses should be replaced every eight years, we recommend replacing a kids' mattress every three years for children between 3 and 10 and every five years for those between 10 and 16. If the child's existing mattress is older than this, we recommend investing in a new bunk bed mattress as soon as possible!

What sizes of bunk bed mattresses are available?

Given that a bunk bed can accept any mattress as long as it's under 16cm tall, you'll find many size options, but our most common bunk mattress sizes are:

  • Single bunk bed mattresses (3' x 6'3", 90 x 190cm)
  • European single bunk mattresses (3' x 6'6", 90 x 200cm)
  • Small double bunk mattresses (4' x 6'3", 120 x 190cm)
  • Double bunk mattresses (4'6" x 6'3", 135 x 190cm)

Not sure which size you need for your new bunk? Check the product page to make sure you buy a matching size. Make sure to measure their bedroom to see if it can accommodate your chosen size using the handy tips in our measuring guide. Our bed size guide explains all the different sizes to ensure you use the space efficiently.

What type of foam filling is available with bunk bed mattresses?

We have two types of foam available with our loft bed mattresses, including:

  • Reflex foam - a high-density foam that provides support and firmness. Reflex foam is made up of tiny holes that mould to your body shape.
  • Memory foam - a low-resistance foam that reacts to pressure by changing shape. It evenly distributes your body weight, offering comfort and support. Find out more about this innovative foam type with our memory foam mattress guide!

What type of spring structures are available with bunk bed mattresses?

A selection of our bunk bed mattresses comes with two types of springs available. These include:

  • Open coil springs – sturdy and supportive with a series of interconnected springs, an open coil mattress is also called a traditional or Bonnell spring mattress!
  • Pocket springs – comfy and supportive mattresses with hundreds of springs, enclosed within individual pockets of fabric that allow each spring to work independently. Find out more in our pocket spring mattress guide.

Should I buy a loft bed mattress from Happy Beds?

Whether you're looking for a single bunk bed mattress or need something a little larger, we have you covered here at Happy Beds with our expansive range! Not only that, but buying from us means you also get to enjoy some of the fantastic benefits we offer, such as:

  • Quick delivery - your child or teenager no longer needs to sleep on the wrong mattress, as we have plenty in stock and ready to be delivered with our standard and premium delivery service.
  • Easy ways to pay – you can pay however you like for your order, whether paying everything up front or spreading the cost with a 0% interest finance plan from Klarna or PayPal.
  • Manufacturer's guarantee - buy confidently knowing that your new bunk bed mattress comes with a 5-year warranty as standard!