{"title":"Mattresses","description":"\u003cp\u003eTwo pocket sprung mattresses from Sofa Bed Expert, both with 1,000 individually pocketed springs and a quilted cooling gel memory foam top: the firm, orthopaedic \u003ca href=\"\/products\/align-1000-firm-orthopaedic-mattress\"\u003eAlign 1000\u003c\/a\u003e and the softer \u003ca href=\"\/products\/serenity-1000-soft-pocket-sprung-mattress\"\u003eSerenity 1000\u003c\/a\u003e. Available in Double (135 x 190 cm) and King Size (150 x 200 cm), FIRA tested, with free delivery across England, Wales and Scotland.\u003c\/p\u003e","products":[{"product_id":"align-1000-firm-orthopaedic-mattress","title":"Align 1000 Firm Orthopaedic Mattress","description":"\u003cdiv class=\"sbe-pd\"\u003e\n\u003ch2\u003eAlign 1000 Firm Orthopaedic Mattress\u003c\/h2\u003e\n\u003cp class=\"sbe-pd-lead\"\u003eFirm, supportive and cool: 1,000 pocket springs under a layer of gel memory foam.\u003c\/p\u003e\n\n\u003cp\u003eThe Align 1000 is our firmer mattress, built for people who find a soft mattress too yielding. A 16 cm core of 1,000 individually pocketed orthopaedic springs holds your body level through the night, while a quilted layer of cooling gel memory foam takes the pressure off hips and shoulders without letting you sink in. The result is a stable, well supported sleeping surface that stays firm to the edge and stays cool until morning.\u003c\/p\u003e\n\n\u003ch3\u003eWho the Align 1000 is for\u003c\/h3\u003e\n\u003cul class=\"sbe-pd-list\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSleepers who like a firm bed.\u003c\/strong\u003e If your current mattress feels like it gives too much, this is the one to choose. Supportive first, cushioned second.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack and stomach sleepers.\u003c\/strong\u003e The firm spring core keeps the spine level rather than letting the hips drop below the shoulders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCouples.\u003c\/strong\u003e Each spring moves on its own, so one person turning over does not roll the other. The reinforced border also means you can use the full width without the edge collapsing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarm sleepers.\u003c\/strong\u003e The gel infused top layer moves heat away from the surface, so it sleeps cooler than a standard memory foam mattress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"sbe-pd-note\"\u003ePrefer a softer, more cushioning feel? The \u003ca href=\"\/products\/serenity-1000-soft-pocket-sprung-mattress\"\u003eSerenity 1000 Soft\u003c\/a\u003e uses the same 1,000 pocket spring core with a softer comfort layer on top. Same sizes, same price.\u003c\/p\u003e\n\n\u003ch3\u003eAlign 1000 or Serenity 1000?\u003c\/h3\u003e\n\u003ctable class=\"sbe-pd-table sbe-pd-table--compare\"\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eAlign 1000 Firm\u003c\/th\u003e\n\u003cth\u003eSerenity 1000 Soft\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFeel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003eFirm, orthopaedic\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003eSoft, cushioning\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBest for\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003eBack and stomach sleepers, anyone who finds soft beds unsupportive\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003eSide sleepers, anyone who finds firm beds too hard\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSprings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003e1,000 firm orthopaedic pocket springs\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003e1,000 FlexCore pocket springs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComfort layer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003e2 cm gel memory foam + 4 cm supportive Flex Comfort Foam\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003e2 cm gel memory foam + 4 cm soft Flex Comfort Foam\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003eApprox. 25 cm\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003eApprox. 25 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-label=\"Align 1000 Firm\"\u003eDouble, King Size\u003c\/td\u003e\n\u003ctd data-label=\"Serenity 1000 Soft\"\u003eDouble, King Size\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eHow it is built\u003c\/h3\u003e\n\u003cul class=\"sbe-pd-list\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2 cm quilted cooling gel memory foam.\u003c\/strong\u003e The top layer moulds gently to your shape and relieves pressure at the hips and shoulders. Gel infusion draws heat away from the surface.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4 cm supportive Flex Comfort Foam.\u003c\/strong\u003e A balanced cushioning layer between the memory foam and the springs, so you feel support rather than individual coils.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16 cm of 1,000 firm orthopaedic pocket springs.\u003c\/strong\u003e Each spring sits in its own fabric pocket and responds to your weight independently. This is what gives the Align 1000 its targeted support and low motion transfer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinforced Flex Support Border.\u003c\/strong\u003e A firm perimeter that keeps the mattress stable edge to edge, so sitting on the side or sleeping near it does not feel like a drop.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3 cm firm Flex Support Foam base.\u003c\/strong\u003e A dense foundation layer that keeps the springs level on any standard bed base.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTotal depth is approximately 25 cm. The mattress is FIRA tested.\u003c\/p\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003ctable class=\"sbe-pd-table sbe-pd-table--spec\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eFeel\u003c\/th\u003e\n\u003ctd\u003eFirm, orthopaedic\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSprings\u003c\/th\u003e\n\u003ctd\u003e1,000 individually pocketed orthopaedic springs, 16 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eComfort layers\u003c\/th\u003e\n\u003ctd\u003e2 cm quilted cooling gel memory foam, 4 cm supportive Flex Comfort Foam\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBase\u003c\/th\u003e\n\u003ctd\u003e3 cm firm Flex Support Foam, reinforced Flex Support Border\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDepth\u003c\/th\u003e\n\u003ctd\u003eApprox. 25 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSizes\u003c\/th\u003e\n\u003ctd\u003eDouble 135 × 190 cm, King Size 150 × 200 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eTesting\u003c\/th\u003e\n\u003ctd\u003eFIRA tested\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDelivery\u003c\/th\u003e\n\u003ctd\u003eFree delivery across England, Wales and Scotland\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eReturns\u003c\/th\u003e\n\u003ctd\u003e14 days to return or exchange from the day after delivery, plus a 48 hour cooling off period after ordering. See our \u003ca href=\"\/policies\/refund-policy\"\u003ereturns policy\u003c\/a\u003e.\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCare\u003c\/th\u003e\n\u003ctd\u003eUse a fitted sheet or mattress protector. Rotate head to foot every few months so the comfort layers wear evenly. Spot clean only.\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdiv class=\"sbe-pd-faq\"\u003e\n  \u003cp class=\"sbe-pd-q\"\u003eHow firm is the Align 1000?\u003c\/p\u003e\n  \u003cp\u003eFirm. It is our orthopaedic option, so the spring core is tensioned to hold you level rather than let you sink. The 2 cm layer of gel memory foam on top softens the surface enough to be comfortable without changing the overall firm feel. If you want a softer bed, choose the Serenity 1000 instead.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eIs a firm mattress better for back pain?\u003c\/p\u003e\n  \u003cp\u003eMany people with back discomfort find a firmer, more supportive surface helps because it keeps the spine level through the night. The pocket springs in the Align 1000 support each part of the body separately, which is why it is described as orthopaedic. If you have a specific medical condition, ask your GP or physiotherapist what they recommend.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eWill it fit my bed frame?\u003c\/p\u003e\n  \u003cp\u003eThe Double is a standard UK double at 135 × 190 cm and the King Size is a standard UK king at 150 × 200 cm, so it fits any standard UK bed frame or divan of the same size. Check your frame's internal measurement if you are unsure.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eCan I use this mattress in my sofa bed?\u003c\/p\u003e\n  \u003cp\u003eNo. At around 25 cm deep it is a mattress for a bed, not a folding sofa bed mechanism. If you want a more comfortable sofa bed, add our \u003ca href=\"\/products\/memory-foam-mattress-topper\"\u003eCool Gel Memory Foam Topper\u003c\/a\u003e, which is cut to the sleeping areas of our sofa beds and lifts off when you fold the bed away.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eDoes memory foam sleep hot?\u003c\/p\u003e\n  \u003cp\u003eStandard memory foam can. The top layer of the Align 1000 is gel infused, which moves heat away from the surface, and it sits over a sprung core rather than a solid foam block, so air moves through the mattress far more freely than in an all foam mattress.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eWill I feel my partner moving?\u003c\/p\u003e\n  \u003cp\u003eMuch less than on an open coil mattress. Each of the 1,000 springs is in its own pocket and compresses on its own, so movement on one side does not travel across the bed.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eDoes it need turning?\u003c\/p\u003e\n  \u003cp\u003eRotate it head to foot every few months so the comfort layers settle evenly. A fitted sheet or mattress protector will keep the quilted cover clean.\u003c\/p\u003e\n\n  \u003cp class=\"sbe-pd-q\"\u003eIs delivery free?\u003c\/p\u003e\n  \u003cp\u003eYes, delivery is free across England, Wales and Scotland. Once your order is ready we will contact you to arrange a delivery day. Questions before you order? Call us free on 0800 368 8914.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"SofaBedExpert.co.uk","offers":[{"title":"Standard Double Size (135cm x 190cm)","offer_id":56227379216769,"sku":"SBE-ALI-1058-STA","price":399.0,"currency_code":"GBP","in_stock":true},{"title":"Standard King Size (150cm x 200cm)","offer_id":56227379249537,"sku":"SBE-ALI-1059-STA","price":499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0341\/8675\/6232\/files\/WhatsAppImage2026-09-05at17.21.16.jpg?v=1788641183"},{"product_id":"serenity-1000-soft-pocket-sprung-mattress","title":"Serenity 1000 Soft Gel Memory Foam Mattress","description":"\u003ch2\u003eSerenity 1000 Soft Gel Memory Foam Mattress\u003c\/h2\u003e\n\u003cp\u003eDesigned for sleepers who prefer a softer, more cushioning feel, the Serenity 1000 combines luxurious comfort with responsive pocket-sprung support. It is the ideal alternative to our firmer Align 1000 Orthopaedic Mattress.\u003c\/p\u003e\n\u003cp\u003eThe quilted gel-infused memory foam gently moulds to your natural body shape, creating a soft and comfortable sleeping surface while helping to regulate temperature throughout the night. Beneath this, a generous layer of Flex Comfort Foam provides additional cushioning and pressure relief.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the mattress are 1,000 individually responsive FlexCore pocket springs. Each spring moves independently to support your body while helping to reduce movement between sleeping partners. A reinforced Flex Support Border adds stability from edge to edge, while the supportive foam base completes the mattress.\u003c\/p\u003e\n\u003ch3\u003eWhy choose the Serenity 1000?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSofter, more cushioning comfort\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIdeal for sleepers who find firm mattresses too hard\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1,000 individually responsive pocket springs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCooling gel-infused memory foam\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGently contours to your natural body shape\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eComfortable pressure relief\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReduced movement between sleeping partners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReinforced edge-to-edge support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFIRA tested\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eApproximate mattress depth: 25cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMattress construction\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eQuilted cooling gel memory foam – 2cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSoft and cushioning Flex Comfort Foam – 4cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1,000 FlexCore pocket springs – 16cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReinforced Flex Support Border\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSupportive Flex Foam base – 3cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable sizes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDouble: 135cm × 190cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eKing Size: 150cm × 200cm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose the Serenity 1000 if you enjoy a softer, more luxurious sleeping surface that gently cushions the body without sacrificing the responsive support of individually pocketed springs.\u003c\/p\u003e","brand":"SofaBedExpert.co.uk","offers":[{"title":"Standard Double Size (135cm x 190cm)","offer_id":56227379708289,"sku":"SBE-SER-1060-STA","price":399.0,"currency_code":"GBP","in_stock":true},{"title":"Standard King Size (150cm x 200cm)","offer_id":56227379741057,"sku":"SBE-SER-1061-STA","price":499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0341\/8675\/6232\/files\/WhatsAppImage2026-09-05at17.21.16_f78bcd27-976c-47c0-919d-4b4ab5027350.jpg?v=1788641577"}],"url":"https:\/\/sofabedexpert.co.uk\/collections\/mattresses.oembed","provider":"SofaBedExpert.co.uk","version":"1.0","type":"link"}