{"title":"Firm Mattresses","description":"\u003cp\u003e\u003cstrong\u003eWhat sizes of firm mattresses are available on Sleep Penguin?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor firm mattresses, we usually have these sizes available: Single (90 cm wide by 190 cm long), Small Double (120 cm wide by 190 cm long), Double (135 cm wide by 190 cm long), and King (150 cm wide by 200 cm long).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow good are the firm mattresses from Sleep Penguin?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA firm mattress provides strong, stable support with minimal sinkage, making it ideal for back and stomach sleepers or those with back pain. It helps maintaining proper spinal alignment by distributing body weight evenly, reducing pressure on joints and muscles. Sleep Penguin’s firmer mattresses prevent the body from sagging, which can improve posture and reduce aches. They are a good choice for heavier individuals who need more support. While they may feel less cushioned than softer options, many people find them more comfortable in the long term. Available in various materials, firm mattresses offer a rigid, supportive, no-nonsense sleep surface for restful nights.\u003c\/p\u003e","products":[{"product_id":"sleep-penguin-emperor-hybrid-firm-19cm-mattress","title":"Sleep Penguin Emperor Hybrid FIRM 19cm Mattress","description":"\u003cp\u003eCombining Full Density FIRM Reflex Foam with 1000 High Performance Pocket Springs, and a 2 cm surface layer of body contouring pressure relieving Memory Foam that moulds to your body this mattress is designed to offer great support for restful night’s sleep every night.\u003c\/p\u003e\n\u003cp\u003eSleep Penguin mattress: Get a Sleep Penguin mattress - just the thing you need for a good night's sleep every night!\u003c\/p\u003e\n\u003cp\u003eFull Hybrid Foam and Springs: Offering great comfort for all sleepers, whether you sleep on your side, front or back.\u003c\/p\u003e\n\u003cp\u003eFull Density Reflex Foam: High quality FIRM foam for superior comfort.\u003c\/p\u003e\n\u003cp\u003eSurface Memory Foam: 2 cm layer for pressure alleviating comfort.\u003c\/p\u003e\n\u003cp\u003eSprings: 1000 High Performance Springs.\u003c\/p\u003e\n\u003cp\u003eSupportive: The medium soft mattress is 19 cm in height and designed to suit all body types.\u003c\/p\u003e\n\u003cp\u003eFive Sizes: Single, small double, double, king or super king.\u003c\/p\u003e\n\u003cp\u003eRemovable \u0026amp; Washable Covers: Temperature-regulating top cover that are washable at 40 degrees.\u003c\/p\u003e\n\u003cp\u003eVacuum Packed: For easy of delivery and your convenience.\u003c\/p\u003e\n\u003cp\u003eUK Made: Manufactured here to meet UK Safety Standards and Fire Regulations\u003c\/p\u003e\n\u003cp\u003eDimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle: 90cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmall double: 120cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDouble: 135cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eKing: 150cm (W) x 200cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuper King :180cm (W) x 200cm (L) x 19cm(D)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sleep Penguin","offers":[{"title":"90cm x 190cm Single","offer_id":56889320178041,"sku":null,"price":389.0,"currency_code":"GBP","in_stock":true},{"title":"120cm x 190cm Small Double","offer_id":56889320210809,"sku":null,"price":479.0,"currency_code":"GBP","in_stock":true},{"title":"150cm x 200cm King","offer_id":56889320243577,"sku":null,"price":539.0,"currency_code":"GBP","in_stock":true},{"title":"180cm x 200cm Super King","offer_id":56889320276345,"sku":null,"price":609.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/4819\/0585\/files\/sleep-penguin-arctic-memory-19cm-mattress-straight-1.jpg?v=1774298894"},{"product_id":"sleep-penguin-king-comfort-firm-19cm-mattress","title":"Sleep Penguin King Comfort FIRM 19cm Mattress","description":"\u003cp\u003e\u003cspan\u003eCombining full density FIRM Reflex Foam with 1000 High Performance Pocket Springs, this mattress is designed to offer great support for restful night’s sleep every night.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSleep Penguin mattress: Get a Sleep Penguin mattress - just the thing you need for a good night's sleep every night!\u003c\/p\u003e\n\u003cp\u003eHybrid Foam and Springs: Offering great comfort for all sleepers, whether you sleep on your side, front or back.\u003c\/p\u003e\n\u003cp\u003eFull Density Reflex Foam: High quality foam for superior comfort.\u003c\/p\u003e\n\u003cp\u003eSprings: 1000 High Performance Springs.\u003c\/p\u003e\n\u003cp\u003eSupportive: The firmer foam offers more support and is 19cm in height and designed to suit all body types.\u003c\/p\u003e\n\u003cp\u003eFive Sizes: Single, small double, double, king or super king.\u003c\/p\u003e\n\u003cp\u003eRemovable \u0026amp; Washable Covers: Temperature-regulating top cover that are washable at 40 degrees.\u003c\/p\u003e\n\u003cp\u003eVacuum Packed: For easy of delivery and your convenience.\u003c\/p\u003e\n\u003cp\u003eUK Made: Manufactured here to meet UK Safety Standards and Fire Regulations.\u003c\/p\u003e\n\u003cp\u003eDimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSingle: 90cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSmall double: 120cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDouble: 135cm (W) x 190cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eKing: 150cm (W) x 200cm (L) x 19cm (D)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuper King :180cm (W) x 200cm (L) x 19cm(D)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sleep Penguin","offers":[{"title":"90cm x 190cm Single","offer_id":56893699817849,"sku":null,"price":379.0,"currency_code":"GBP","in_stock":true},{"title":"120cm x 190cm Small Double","offer_id":56893699850617,"sku":null,"price":469.0,"currency_code":"GBP","in_stock":true},{"title":"150cm x 200cm King","offer_id":56893699883385,"sku":null,"price":519.0,"currency_code":"GBP","in_stock":true},{"title":"180cm x 200cm Super King","offer_id":56893699916153,"sku":null,"price":599.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/4819\/0585\/files\/sleep-penguin-arctic-memory-19cm-mattress-diagonal-1.jpg?v=1774298894"},{"product_id":"mlily-lite-2000-narvi-mattress","title":"Mlily Lite 2000 Narvi Mattress","description":"\u003cp\u003eThe top layer, a memory foam, of the 25 cm Mlily Lite 2000 Narvi hybrid mattress adds premium level of comfort and all over support that adapts to your body’s natural pressure points.\u003c\/p\u003e\n\u003cp\u003eA second layer of Mlily support foam increases the amount of adaptive support to your body.\u003c\/p\u003e\n\u003cp\u003eThe Flex-2000 Pocket Spring System gives outstanding comfort and support while allowing increased airflow through the core of the mattress to help aid temperature regulation.\u003c\/p\u003e\n\u003cp\u003eThe support borders help evenly distribute body weight for all over support, and the base layer of flex support foam provides corner to corner support giving you better night’s sleep.\u003c\/p\u003e\n\n\u003cp\u003ePRODUCT INFO\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e25 cm hybrid mattress\u003c\/li\u003e\n\u003cli\u003eTop: 2 cm premium level Mlily comfort memory foam\u003c\/li\u003e\n\u003cli\u003eSecond layer: 3.5 cm Mlily comfort support foam\u003c\/li\u003e\n\u003cli\u003e16 cm pocket spring and support borders\u003c\/li\u003e\n\u003cli\u003eBottom: 3.5 cm Flex support foam\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mlily","offers":[{"title":"90cm x 190cm Single","offer_id":64486986088825,"sku":null,"price":513.0,"currency_code":"GBP","in_stock":true},{"title":"135cm x 190cm Double","offer_id":64486986121593,"sku":null,"price":609.0,"currency_code":"GBP","in_stock":true},{"title":"150cm x 200cm King","offer_id":64486986154361,"sku":null,"price":708.0,"currency_code":"GBP","in_stock":true},{"title":"180cm x 200cm Super King","offer_id":64486986187129,"sku":null,"price":822.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/4819\/0585\/files\/NARVI1.jpg?v=1788603287"},{"product_id":"uno-e-volve-sleep-comfort-2000-firm-mattress","title":"UNO E-Volve Sleep Comfort 2000 Firm Mattress","description":"\u003cp\u003eWith 2000 firm springs sitting at the core, this firm hybrid mattress helps evenly distribute your body weight for a relaxed and supportive night’s sleep. With a firm sleeping surface, the Uno E-Volve Sleep Comfort 2000 Firm hybrid mattress assists with temperature regulation and helps align your spine. The top layer premium comfort foam together with the individually wrapped firm springs will spread your body weight evenly across the mattress for increased support and comfort. The bottom layer endurance support foam is a strengthened base that gives you stability.\u003c\/p\u003e\n\u003cp\u003ePRODUCT INFO\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTop layer: A layer of 3 cm premium comfort foam\u003c\/li\u003e\n\u003cli\u003eThe individually wrapped 2000 U-Firm springs are surrounded by a robust eco-friendly border with 15 cm height\u003c\/li\u003e\n\u003cli\u003eBottom layer: 2.5 cm support foam\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"UNO","offers":[{"title":"90cm x 190cm Single","offer_id":64487349977465,"sku":null,"price":336.0,"currency_code":"GBP","in_stock":true},{"title":"120cm x 190cm Small Double","offer_id":64487350010233,"sku":null,"price":474.0,"currency_code":"GBP","in_stock":true},{"title":"135cm x 190cm Double","offer_id":64487350043001,"sku":null,"price":474.0,"currency_code":"GBP","in_stock":true},{"title":"150cm x 200cm King","offer_id":64487350075769,"sku":null,"price":522.0,"currency_code":"GBP","in_stock":true},{"title":"180cm x 200cm Super King","offer_id":64487350108537,"sku":null,"price":603.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/4819\/0585\/files\/InvigoratePocket1800FirmLifestyle.jpg?v=1788610250"}],"url":"https:\/\/www.sleeppenguin.com\/collections\/firm-mattresses.oembed","provider":"Sleep Penguin","version":"1.0","type":"link"}