PocketRest 15cm Bunk Bed & High Sleeper Kids Mattress

Premium Pocket Sprung Support 15cm Mattress - Proudly Made in the UK

The PocketRest 15 is a low-profile 15cm mattress for children’s beds, made to fit bunk beds, high sleepers, mid sleepers and cabin beds as well as standard singles and day beds.

For UK parents and guardians choosing a mattress for a child or teenager, that 15cm depth is usually the maximum raised beds allow, so it keeps the full guard-rail height on a top bunk while still sitting properly on a floor-level frame.

Here, we’re looking at what a 15cm mattress actually suits, how it compares with deeper options, and which features matter most for safety, comfort and everyday use.

Inside are individually wrapped pocket springs, each one moving on its own. That does two things a foam mattress can't. A child turning over on the top bunk doesn't move the mattress underneath them, so a sibling below sleeps through it. And the edge holds its shape, so a teenager sleeping close to the side of a single isn't rolling toward the floor. A high-density memory foam layer sits over the springs for a cushioned surface, contouring to body shape to relieve pressure points at the shoulders, distribute weight more evenly and help provide personalised support. The result is a medium-firm feel that aims for the perfect balance between support and comfort, helping reduce stress on pressure points while promoting better posture and full-body support through the night without feeling hard.

The depth matters more than it looks. A 15cm mattress has less room for comfort layers than deeper models, but a well-made design in this low-profile category can still outperform thicker alternatives. On a raised bed the guard rail is designed around a mattress no deeper than 15cm. Go deeper and the sleeping surface rises while the rail stays put, and the child has less between them and the floor. At 15cm the PocketRest keeps the rail where it should be.

It’s made in the UK, crafted from materials chosen for raised-bed use, and tested to BS 7177 fire safety standards for children’s beds, including the Low Hazard rating of BS 7177:2008 and resistance to smoking materials such as cigarettes. Mattresses are tested regularly for fire safety compliance to meet UK regulations. It also comes with a removable cover that goes in the wash, with hypoallergenic and dust mite resistant properties that support sleep health and well-being. Supplied vacuum packed and delivered rolled in a box, it’s lighter and easier to handle than thicker models, which helps when moving it into a child’s room or storing it when needed, and you can check delivery availability for your location before purchase.

Medium Firm Memory Foam Mattresses: Features & Benefits

• Fits raised beds and floor beds. 15cm deep, the safe maximum for bunks, high sleepers, mid sleepers and cabin beds, and right for singles and day beds; its low weight also makes it easy to move or store.

• Individually pocketed springs. They work independently, helping with reducing motion transfer so movement on one side doesn't travel to the other, and the edges hold their shape.

• Memory foam comfort layer. Unlike some memory foam mattresses, it gives pressure relief and support across different sleeping positions over supportive springs.

• Medium-firm. This firmness, with a soft comfort layer, creates a balanced feel for growing sleepers.

• Made in the UK. Tested to BS 7177 by an independent UKAS-accredited lab, and all our mattresses use tested materials.

• Washable cover. Removable, so accidents don't mean a new mattress.

• Rolled and boxed. Fits through doors and up stairs, and you can check delivery availability for your postcode before purchase.

• Better value. A 15cm mattress is usually more affordable, with lower prices across the range because it uses fewer raw materials, though offers can depend on stock, and thinner designs can have a shorter lifespan and be less suitable for couples or heavier adults.

• 1-year manufacturer's guarantee.

Fits Bunk Beds

Bunk beds, high sleepers, mid sleepers, cabin beds, day beds and standard single beds all feature a low-profile fit. It suits a child’s bedroom, guest room or spare room where a 15cm mattress is needed.

Shop in our online store with free delivery, and contact customer support before purchase if you need to exchange sizing advice.