Bunk Bed Safe Mattresses
- Free UK delivery to most postcodes
- Next day on selected items
- 14-day returns
Find the right mattress for a bunk, mid sleeper or high sleeper with our bunk bed safe mattresses at Rest Relax. Each one has a slim, low-profile depth (typically 15cm or less) that meets the recommended safe height for raised and top-bunk beds, without compromising on comfort or support. Choose from foam and sprung builds — ideal for children, teens and guest rooms — in single and small-double sizes. Shop bunk-safe comfort the whole family can rely on.
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Thrive Kids Trundle Foam Mattress
- Firm
- 10cm deep
- Made in Britain
- In stock
Original price £89.00 - Original price £129.00Original priceStarting from: £89.00£89.00 - £129.00Current price £89.00| /In stockNeed a tough, easy-care mattress for a bunk or trundle bed? The Thrive Kids Trundle Foam Mattress is built around a high-density EcoFoam core that ...
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Savers Memory Foam Mattress
- Medium
- 13cm deep
- Made in Britain
- In stock
Original price £79.95 - Original price £179.00Original priceStarting from: £79.95£79.95 - £179.00Current price £79.95| /In stockLooking for genuine memory foam comfort on a budget? The Savers Memory Foam Mattress tops a supportive foam base with a responsive memory foam laye...
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Thrive Kids Hybrid Pocket Mattress
- Medium
- 15cm deep
- Made in Britain
- In stock
Original price £139.00 - Original price £219.00Original priceStarting from: £139.00£139.00 - £219.00Current price £139.00| /In stockWant individual spring support for a growing child? The Thrive Kids Pocket Sprung Mattress is a 15cm kids' mattress — a 10cm mini pocket-spring cor...
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Thrive Kids Eco Comfort Foam Mattress
- Firm
- 14cm deep
- Made in Britain
- In stock
Original price £99.00 - Original price £159.00Original priceStarting from: £99.00£99.00 - £159.00Current price £99.00| /In stockLooking for a firm, eco-friendly mattress for a bunk or trundle? The Thrive Kids Eco Comfort Foam Mattress is built from a 14cm high-density EcoFoa...
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Thrive Kids Waterproof Support Foam Mattress
- Medium
- 14cm deep
- Made in Britain
- In stock
Original price £119.00Original price £119.00 - Original price £259.99Original price £169.99Starting from: £119.00£119.00 - £189.00Current price £119.00| /In stockSpills and accidents are part of family life — the Thrive Kids Waterproof Support Foam Mattress is built for it. A silent, all-foam core gives grow...
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Thrive Kids Memory Support Foam Mattress
- Medium
- 15cm deep
- Made in Britain
- In stock
Original price £159.00Original price £159.00 - Original price £249.99Original price £169.99Starting from: £119.00£119.00 - £179.00Current price £119.00| /In stockWant a balanced, comfortable mattress for a growing child? The Thrive Kids Memory Support Foam Mattress is a 15cm three-layer kids' mattress — a 2c...
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Thrive Kids Ortho Support Foam Mattress
- Firm
- 15cm deep
- Made in Britain
- In stock
Original price £129.00 - Original price £189.00Original priceStarting from: £129.00£129.00 - £189.00Current price £129.00| /In stockWant firm, posture-supporting comfort for a growing child? The Thrive Kids Ortho Support Foam Mattress is a 15cm reflex foam mattress — 33 density ...
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Thrive Kids Memory Hybrid Pocket Mattress
- Medium
- 15cm deep
- Made in Britain
- In stock
Original price £149.00 - Original price £229.00Original priceStarting from: £149.00£149.00 - £229.00Current price £149.00| /In stockWant individual spring support with a contouring memory foam top for your child? The Thrive Kids Memory Pocket Sprung Mattress is a 15cm kids' matt...
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Thrive Kids Support Foam Mattress
- Medium
- 14cm deep
- Made in Britain
- In stock
Original price £119.00 - Original price £179.00Original priceStarting from: £119.00£119.00 - £179.00Current price £119.00| /In stockLooking for a dependable, budget-friendly mattress for your child's bed? The Thrive Kids Support Foam Mattress is a 14cm reflex foam mattress — 30 ...
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Essential Comfort Memory Foam Mattress
- Medium
- 18cm deep
- Made in Britain
- In stock
Original price £129.00 - Original price £259.00Original priceStarting from: £129.00£129.00 - £259.00Current price £129.00| /In stockWant a teen mattress that's supportive but not rock-hard? The Essential Comfort Memory Foam Mattress balances a 2cm memory foam top, a 2cm reflex l...
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Thrive Kids Gel Memory Support Foam Mattress
- Medium
- 15cm deep
- Made in Britain
- In stock
Original price £129.00 - Original price £189.00Original priceStarting from: £129.00£129.00 - £189.00Current price £129.00| /In stockFor a child who likes a balanced feel and sleeps warm, the Thrive Kids Gel Memory Support Foam Mattress is a 15cm three-layer kids' mattress — a 2c...
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Thrive Kids Ortho Memory Foam Mattress
- Firm
- 15cm deep
- Made in Britain
- In stock
Original price £119.00 - Original price £179.00Original priceStarting from: £119.00£119.00 - £179.00Current price £119.00| /In stockWant firm orthopaedic support with a contouring top for your child? The Thrive Kids Ortho Memory Foam Mattress is a 15cm three-layer kids' mattress...
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Thrive Kids Trundle Support Foam Mattress
- Medium
- 10cm deep
- Made in Britain
- In stock
Original price £99.00 - Original price £149.00Original priceStarting from: £99.00£99.00 - £149.00Current price £99.00| /In stockNeed a slim mattress that fits a trundle or bunk safely? The Thrive Kids Trundle Support Foam Mattress is a compact 10cm reflex foam mattress — 30 ...
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Deluxe Support Hybrid Sprung Mattress
- Medium
- 19cm deep
- Made in Britain
- In stock
Original price £109.00 - Original price £189.00Original priceStarting from: £109.00£109.00 - £189.00Current price £109.00| /In stockWant responsive spring support at a great price? The Deluxe Support Sprung Mattress is a 19cm hybrid — a 14cm coil-spring core, a 2cm eco-foam base...
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Deluxe Memory Hybrid Sprung Mattress
- Medium
- 19cm deep
- Made in Britain
- In stock
Original price £109.00 - Original price £199.00Original priceStarting from: £109.00£109.00 - £199.00Current price £109.00| /In stockLooking for supportive spring comfort on a budget? The Deluxe Memory Sprung Mattress is a 19cm hybrid — a responsive 14cm coil-spring core, a 2cm e...
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Essential Ortho Foam Mattress
- Firm
- 18cm deep
- Made in Britain
- In stock
Original price £139.00 - Original price £259.00Original priceStarting from: £139.00£139.00 - £259.00Current price £139.00| /In stockNeed a tough, supportive mattress for a bunk, trundle or teen's bed? The Essential Ortho Foam Mattress is built from a single 18cm slab of high-den...
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Premier Memory Hybrid Sprung Mattress
- Medium
- 19cm deep
- Made in Britain
- In stock
Original price £129.00 - Original price £219.00Original priceStarting from: £129.00£129.00 - £219.00Current price £129.00| /In stockWant spring support with body-moulding comfort on top? The Premier Memory Sprung Mattress is a 19cm hybrid — foam-encapsulated 14cm coil springs fo...
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Thrive Kids Gel Memory Hybrid Pocket Mattress
- Medium
- 15cm deep
- Made in Britain
- In stock
Original price £149.00 - Original price £239.00Original priceStarting from: £149.00£149.00 - £239.00Current price £149.00| /In stockWant individual spring support with a cooler memory-foam top for your child? The Thrive Kids Gel Memory Pocket Sprung Mattress is a 15cm kids' matt...
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Thrive Kids Ortho Gel Memory Foam Mattress
- Firm
- 15cm deep
- Made in Britain
- In stock
Original price £129.00 - Original price £199.00Original priceStarting from: £129.00£129.00 - £199.00Current price £129.00| /In stockFor the child who needs firm support but runs warm, the Thrive Kids Ortho Gel Memory Foam Mattress is a 15cm three-layer kids' mattress — a 2cm gel...
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Value Memory Hybrid Sprung Mattress
- Medium
- 17cm deep
- Made in Britain
- In stock
Original price £99.00 - Original price £159.00Original priceStarting from: £99.00£99.00 - £159.00Current price £99.00| /In stockValue Memory Sprung Mattress - Medium Comfort What It Is & Who It’s ForThe Value Memory Sprung Mattress is a UK-made hybrid mattress designed f...
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Value Eco Comfort Hybrid Sprung Kids Mattress
- Medium
- 16cm deep
- In stock
Original price £89.00 - Original price £139.00Original priceStarting from: £89.00£89.00 - £139.00Current price £89.00| /In stockValue Eco Comfort Hybrid Sprung Kids Mattress - 16cm Medium Comfort Hybrid Design Looking for a mattress that offers reliable comfort without feel...
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