Jay-Be QUEST Q3 Hybrid e-Pocket Eco-Friendly Childrens Single Mattress in a Box
The Jay-Be QUEST Q3 is a children's mattress that arrives rolled in a box, which makes getting it up the stairs and into a child's bedroom far easier than wrestling a full-size flat mattress.
- Easy to carry upstairs
- Fits most children's single beds
- Pocket sprung hybrid support
£206.40
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Jay-Be QUEST Q3 Hybrid e-Pocket Eco-Friendly Childrens Mattress in a Box
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Mattress details
Mattress
Jay-Be QUEST Q3 Hybrid e-Pocket Eco-Friendly Childrens Mattress in a Box
Size
Firmness
Medium Soft
Construction
Pocket Spring
Hybrid
Rolled
Eco-Friendly
Depth (cm)
Layers
3
Layer Details
Soft knitted fabric surface
A soft knitted fabric cover that is kind to the skin. It gives your child a cosy surface to sleep on, and the stretch knit fabric is recyclable.
Micro e-Pocket springs
A layer of small micro e-Pocket springs sits above the main core. They give continuous, huggable support and comfort, so the bed feels cushioned without being sink-in soft.
Deep e-Pocket core
The deep e-Pocket springs form the base of the mattress and carry the support. They work with the micro springs above to hold your child up while they sleep.
Layer details from dunelm.com and archerssleepcentre.co.uk product pages, October 2026.
Key benefits
- Fits the room a child actually has: At 90cm wide, it leaves floor free for a wardrobe, a desk and toy storage in even a modest child's bedroom.
- Standard frame fit: The 90 x 190cm footprint matches most UK single bed frames, bunks and mid sleepers, so you shouldn't need to measure twice.
- Rolled delivery suits awkward stairs: It arrives compressed in a box, which means tight landings, loft conversions and cabin bed corners are far less of a battle.
- Cheap, easy bedding: Single sheets and duvets are the most widely stocked bedding of any UK size, handy when a child gets through them quickly.
- Two can fit where one double can't: Siblings sharing a room can often have a UK single each with a walkway between, where a larger bed would swallow the space.
This size suits you if...
You're buying for a child's bed, bunk or mid sleeper with a standard 90 x 190cm frame, your child's room has to fit a bed alongside storage and a desk, or you want a mattress that one person can carry upstairs in a box.
Consider another size if...
You need anything wider than 90cm, perhaps for a teen moving to a small double or a spare room that hosts couples. The QUEST Q3 comes in a UK single only, so you'd need a different mattress rather than a different size.
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FAQ's
What are the dimensions of the Jay-Be QUEST Q3 UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard UK single footprint, so it should fit any regular single frame, bunk or mid sleeper base without overhang or gaps at the edges.
What room size do I need for the Jay-Be QUEST Q3 in a UK single?
We suggest allowing at least 2.1m x 2.8m of floor space. That gives room to walk alongside the bed and open drawers or a wardrobe. In a child's room competing with toy storage and a desk, the single's 90cm width is what makes everything fit.
Will the Jay-Be QUEST Q3 UK single fit a bunk bed or mid sleeper?
The 90 x 190cm footprint matches standard bunk and mid sleeper frames. Raised frames often have a maximum mattress depth for safety rails, though, and Jay-Be's published details here are limited, so check the mattress depth against your frame's guidance before buying.
Does normal single bedding fit the Jay-Be QUEST Q3?
Yes. Because it's a standard UK single at 90 x 190cm, ordinary single fitted sheets and a single duvet (135 x 200cm) fit. No special sizes needed, which keeps replacement bedding cheap and easy to find on any high street.
Is the Jay-Be QUEST Q3 single big enough for a teenager?
A UK single is the standard one-person size, so most teens fit comfortably at 190cm long. This is a children's mattress, though, and if your teenager is heading towards adult sizing or a small double frame, the QUEST Q3 won't come with them: it's made in a UK single only.