{"title":"Split King Mattresses","description":"\u003cdiv class=\"seo-collection-intro-green\" style=\"color: #384F3B;\"\u003e\n\u003cp style=\"color: #384F3B;\"\u003eA split king mattress is not simply a king with a seam. It is a two-piece sleep system built from two Twin XL mattresses, which can let each sleeper choose a different feel and, with a compatible split adjustable base, change position independently. This collection brings together three Nest Bedding mattresses that support that setup in distinctly different ways: the cushioned foam-over-coil Sparrow, the buoyant natural-latex-over-coil Owl, and the contouring all-foam Starling. The first decision is whether you actually need two separate mattresses or only different firmness on each side of one king. From there, compare movement, edge feel, pressure relief, temperature, mattress height, and how each side may need to change over time.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"sparrow-signature-hybrid-mattress","title":"Sparrow Signature Hybrid","description":"\u003cp\u003eAn elevated 14-inch pillow-top hybrid mattress. It combines pressure-relieving foam comfort layers with individually wrapped pocketed coils for responsive support, motion isolation, reinforced edge support, and broad compatibility across side, back, stomach, and combination sleepers. Previously known as the Alexander Signature Hybrid. Construction and materials: 1-inch quilted THERMIC® phase-change cooling cover with 4 lb. gel memory foam for surface cushioning and temperature regulation. 3-inch Energex™ temperature-responsive comfort foam. Feel-specific comfort layers include Plush at 2.5 lb.\/10 ILD, Medium at 2.5 lb.\/22 ILD, and Firm at 2 lb.\/30 ILD. 1-inch SmartFlow support foam, 1.5 lb.\/30 ILD, used as a transition layer between the comfort foam and coil support system. 8-inch 13.75-gauge reinforced-edge \u0026amp; 14.5-gauge support pocketed coil support system with individually wrapped coils for airflow, motion isolation, and edge support. Coil counts vary by size, up to 961 coils in King. 1-inch 3-lb. base support foam below the coil unit. Non-chemical hydrogenated silica fire barrier. Certifications and origin: Assembled in the USA. Foams are CertiPUR-US® certified. Foams are made in the USA using domestic and imported materials. Coils are made in the USA from imported and domestic steel. All foams are given time to air out in the factory to reduce residual off-gassing. Vegan mattress construction: CertiPUR-US® certified foams with no animal-derived materials or adhesives. Firmness and sleep fit. Available feels: Plush, Medium, and Firm. Plush is designed for side sleepers, lighter sleepers under 140 lb., and shoppers who want a softer feel with pressure-point relief. Medium is designed for combination sleepers, back-and-side sleepers, average-weight sleepers, and shoppers who want support with moderate give. Firm is designed for back sleepers, stomach sleepers, sleepers who need additional lumbar support, and shoppers who prefer a firmer surface with a pillow-top feel. King and California King sizes can be ordered with internal split comfort layers so each side has a different firmness. Sizes and dimensions Twin: 38 in W x 75 in L x 14 in H; 75 lb.; 448 coils. Twin XL: 38 in W x 80 in L x 14 in H; 80 lb.; 480 coils. Full: 54 in W x 75 in L x 14 in H; 100 lb.; 616 coils. Queen: 60 in W x 80 in L x 14 in H; 115 lb.; 775 coils. King: 76 in W x 80 in L x 14 in H; 141 lb.; 961 coils. California King: 72 in W x 84 in L x 14 in H; 141 lb.; 957 coils. Split California King, one side: 36 in W x 84 in L x 14 in H; 85 lb.; 478 coils. Setup, foundation, and care notes: The mattress ships compressed, folded, and rolled in a box; Queen, King, and California King orders are double boxed. Allow 12 to 24 hours after unboxing for the mattress to reach its intended height. Use an approved mattress foundation or adjustable base. Nest Bedding lists the HomeBase foundation, Balance Adjustable Base, Woodland Platform, and Metal Folding Frame as compatible options. Using non-approved foundations, including bowed slats or box springs, can void return and warranty privileges because improper support may cause additional sinkage. The zippered design allows the inner Energex comfort layer to be replaced with a different firmness level. The layer can also be rotated, flipped, or swapped as it wears to help extend mattress life. Shipping, trial, and exchange details. Made to order. Order processing typically takes 24 to 48 hours, followed by 3 to 6 business days of production before shipment. Free shipping is available in the continental United States. Additional shipping rates apply for Alaska, Hawaii, and Canada. Once shipped, estimated doorstep delivery is 3 to 8 business days. Includes a 365-night sleep trial. Free returns are available in all states. Lifetime Renewal Exchange is a one-time comfort-layer exchange that can be used during the first 365 nights or years later to adjust firmness or refresh the mattress. Best uses: Couples who want motion isolation from individually wrapped coils. Couples who need different firmness levels on each side of a King or California King mattress. Sleepers who want a responsive foam feel with less slow-sinking recovery than traditional memory foam. Hot sleepers looking for airflow from a hybrid coil system plus a THERMIC® phase-change cover. Shoppers who want a renewable mattress design with a swappable comfort layer instead of replacing the full mattress when firmness needs change.\u003c\/p\u003e","brand":"Nest Bedding Mattress","offers":[{"title":"Twin \/ Medium","offer_id":32778464788561,"sku":"NESPCM-1110","price":1318.0,"currency_code":"USD","in_stock":true},{"title":"Twin \/ Plush","offer_id":32778464821329,"sku":"NESPCP-1110","price":1318.0,"currency_code":"USD","in_stock":true},{"title":"Twin \/ Firm","offer_id":32778464854097,"sku":"NESPCF-1110","price":1318.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Medium","offer_id":32778464886865,"sku":"NESPCM-1120","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Plush","offer_id":32778464919633,"sku":"NESPCP-1120","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Firm","offer_id":32778464952401,"sku":"NESPCF-1120","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Medium","offer_id":32778465574993,"sku":"NESPCM-1171","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Plush","offer_id":32778465607761,"sku":"NESPCP-1171","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Firm","offer_id":32778465640529,"sku":"NESPCF-1171","price":1432.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Medium","offer_id":32778464985169,"sku":"NESPCM-1130","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Plush","offer_id":32778465017937,"sku":"NESPCP-1130","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Firm","offer_id":32778465050705,"sku":"NESPCF-1130","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Medium","offer_id":32778464690257,"sku":"NESPCM-1150","price":2292.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Plush","offer_id":32778464723025,"sku":"NESPCP-1150","price":2292.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Firm","offer_id":32778464755793,"sku":"NESPCF-1150","price":2292.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Med\/Firm","offer_id":32778465181777,"sku":"NESSCM-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Firm\/Plush","offer_id":32778465214545,"sku":"NESSCF-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Plush\/Med","offer_id":32778465247313,"sku":"NESSCP-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Medium","offer_id":32778465083473,"sku":"NESPCM-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Plush","offer_id":32778465116241,"sku":"NESPCP-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Firm","offer_id":32778465149009,"sku":"NESPCF-1180","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Med\/Firm","offer_id":32778465476689,"sku":"NESSCM-1170","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Firm\/Plush","offer_id":32778465509457,"sku":"NESSCF-1170","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Plush\/Med","offer_id":32778465542225,"sku":"NESSCP-1170","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Medium","offer_id":32778465378385,"sku":"NESPCM-1170","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Plush","offer_id":32778465411153,"sku":"NESPCP-1170","price":2636.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Firm","offer_id":32778465443921,"sku":"NESPCF-1170","price":2636.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/7582\/files\/sparrow-luxury-foam-hybrid-0270-optimized.webp?v=1783114075"},{"product_id":"owl-natural-latex-hybrid-mattress","title":"Owl Natural Latex Hybrid","description":"A premium latex hybrid mattress that combines organic cotton, wool, natural latex comfort layers, and individually wrapped pocketed coils. It is designed for responsive pressure relief, airflow, motion isolation, reinforced edge support, and a buoyant sleep feel that is less slow-sinking than traditional memory foam. The Owl was previously known as the Natural Latex Hybrid. Construction and materials: Organic cotton and Joma wool cover for a breathable, natural-fiber sleep surface. Natural latex comfort layer for responsive contouring, pressure relief, and buoyant support. Hybrid support system with individually wrapped pocketed coils for airflow, motion isolation, and responsive support. Reinforced edge support to improve usable sleep surface and perimeter stability. Zippered comfort-layer design that allows the inner latex comfort layer to be exchanged for a different firmness when eligible. Non-chemical fire barrier made from natural or silica-based materials, in accordance with the current product specifications. Certifications and origin: Assembled in the USA. Contains natural latex comfort materials. Organic cotton and wool cover materials are listed on the product page. OEKO-TEX certification is listed in the current Shopify product data. Coils are made in the USA from domestic and imported steel, according to Nest Bedding's product data. Foam and latex origin, certification, and batch-specific details should be confirmed on the current product page and on the product label. Firmness and sleep fit: Available feels include Plush, Medium, and Firm. Plush is designed for side sleepers, lighter sleepers, and shoppers who want deeper pressure relief from the latex comfort layer. Medium is designed for combination sleepers, back and side sleepers, and shoppers who want a balance of contouring and support. Firm feel is designed for back sleepers, stomach sleepers, heavier sleepers, and shoppers who prefer a more supportive latex hybrid surface. King and California King sizes may be available with split comfort, allowing each side to use a different firmness when offered. Sizes and dimensions: Available sizes include Twin, Twin XL, Full, Queen, King, California King, Split King, and Split California King when listed in current variants. Exact dimensions, weight, and coil counts should be confirmed from the selected live variant and current product specifications. The mattress is designed as a full-height latex hybrid, suitable for standard mattress sizes and compatible with standard foundations. Setup, foundation, and care notes: Use on an approved mattress foundation, platform bed, slatted base, or adjustable base that provides even support. Do not use on bowed slats, unsupportive box springs, or foundations that allow sagging, because improper support can affect comfort, returns, and warranty eligibility. Allow the mattress time to expand after unboxing if shipped compressed. Use a mattress protector to help guard against spills, stains, and everyday moisture. The zippered comfort-layer design allows eligible comfort-layer exchanges and supports long-term mattress renewal. Rotate the mattress or comfort layer according to Nest Bedding guidance to promote even wear. Shipping, trial, and exchange details: Made to order according to Nest Bedding's current production workflow. Free shipping is available in the continental United States when offered by the current product policy. Additional shipping rates may apply for Alaska, Hawaii, Canada, or other destinations. Includes a 365-night sleep trial when purchased under standard eligible terms. Comfort-layer exchange may be available during the trial or later through Nest Bedding's Lifetime Renewal Exchange program when eligible. Current shipping, return, trial, warranty, and exchange terms should be confirmed on the live product page and Nest Bedding policy pages. Best uses: Sleepers who want the buoyant, responsive feel of latex with the support and airflow of pocketed coils. Hot sleepers looking for breathable organic cotton, wool, latex, and coil-based airflow. Couples who want motion isolation from individually wrapped coils. Shoppers who want natural materials in the comfort system instead of a conventional memory-foam hybrid. Couples who need different firmness levels on each side of a King or California King mattress when split comfort is available. People who want a renewable mattress design with an exchangeable comfort layer rather than replacing the full mattress when firmness needs change.","brand":"Nest Bedding Mattress","offers":[{"title":"Twin \/ Medium","offer_id":32778468556881,"sku":"NEOWCM-1110","price":1604.0,"currency_code":"USD","in_stock":true},{"title":"Twin \/ Plush","offer_id":32778468589649,"sku":"NEOWCP-1110","price":1604.0,"currency_code":"USD","in_stock":true},{"title":"Twin \/ Firm","offer_id":32778468622417,"sku":"NEOWCF-1110","price":1604.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Medium","offer_id":32778468655185,"sku":"NEOWCM-1120","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Plush","offer_id":32778468687953,"sku":"NEOWCP-1120","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Firm","offer_id":32778468720721,"sku":"NEOWCF-1120","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Medium","offer_id":32778469343313,"sku":"NEOWCM-1171","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Plush","offer_id":32778469376081,"sku":"NEOWCP-1171","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Firm","offer_id":32778469408849,"sku":"NEOWCF-1171","price":1891.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Medium","offer_id":32778468753489,"sku":"NEOWCM-1130","price":2235.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Plush","offer_id":32778468786257,"sku":"NEOWCP-1130","price":2235.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Firm","offer_id":32778468819025,"sku":"NEOWCF-1130","price":2235.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Medium","offer_id":32778468458577,"sku":"NEOWCM-1150","price":2522.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Plush","offer_id":32778468491345,"sku":"NEOWCP-1150","price":2522.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Firm","offer_id":32778468524113,"sku":"NEOWCF-1150","price":2522.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Med\/Firm","offer_id":32778468950097,"sku":"NEOSCM-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Firm\/Plush","offer_id":32778468982865,"sku":"NEOSCF-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Internal Split, Plush\/Med","offer_id":32778469015633,"sku":"NEOSCP-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Medium","offer_id":32778468851793,"sku":"NEOWCM-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Plush","offer_id":32778468884561,"sku":"NEOWCP-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Firm","offer_id":32778468917329,"sku":"NEOWCF-1180","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Med\/Firm","offer_id":32778469245009,"sku":"NEOSCM-1170","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Firm\/Plush","offer_id":32778469277777,"sku":"NEOSCF-1170","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Internal Split, Plush\/Med","offer_id":32778469310545,"sku":"NEOSCP-1170","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Medium","offer_id":32778469146705,"sku":"NEOWCM-1170","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Plush","offer_id":32778469179473,"sku":"NEOWCP-1170","price":2866.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Firm","offer_id":32778469212241,"sku":"NEOWCF-1170","price":2866.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/7582\/files\/owlmattresshero-weboptimized.webp?v=1783636049"},{"product_id":"starling-signature-contour-grid","title":"Starling Signature Contour","description":"The Starling Signature Contour is a 12.5-inch all-foam mattress from Nest Bedding with a distinctive internal comfort design. It uses responsive foam, slow-response memory foam, convoluted support foam, and high-density support layers to provide adaptive contouring, pressure relief, airflow, and motion isolation. The internal comfort design can be flipped to adjust the feel within a medium-to-firm range.\n\nConstruction and materials\nTHERMIC® phase-change cooling cover for temperature regulation at the surface.\nEnergex™ temperature-responsive foam for a more responsive, breathable comfort feel.\nTitanium and graphite-infused slow-response memory foam for contouring pressure relief.\nConvoluted support foam designed to improve airflow, body contouring, and weight distribution.\nTransitional support foam helps stabilize comfort layers over the support core.\nBase support foam provides structural support for the all-foam mattress.\nNon-chemical hydrogenated silica fire barrier when listed on the live product page.\n\nCertifications and origin\nAssembled in the USA.\nFoams are CertiPUR-US® certified.\nFoams are made in the USA using domestic and imported materials where applicable.\nFoams are given time to air out in the factory to reduce residual off-gassing.\n\nFirmness and sleep fit\nThe Starling is designed around a medium-to-firm comfort range, generally described around 6 to 8 on a 10-point firmness scale depending on the internal layer orientation.\nThe softer orientation is suited to sleepers who want more contouring and pressure relief.\nThe firmer orientation is suited to sleepers who want more support, easier movement, and less sink.\nThe all-foam design is useful for sleepers who want strong motion isolation and a contouring feel without a coil system.\n\nSizes and dimensions\nTwin: 38 in W x 75 in L x 12.5 in H.\nTwin XL: 38 in W x 80 in L x 12.5 in H.\nFull: 54 in W x 75 in L x 12.5 in H.\nQueen: 60 in W x 80 in L x 12.5 in H.\nKing: 76 in W x 80 in L x 12.5 in H.\nCalifornia King: 72 in W x 84 in L x 12.5 in H.\nSplit California King, one side: 36 in W x 84 in L x 12.5 in H.\n\nSetup, foundation, and care notes\nThe mattress ships compressed, folded, and rolled in a box.\nAllow 12 to 24 hours after unboxing for the mattress to reach its intended height.\nUse an approved, supportive foundation, platform bed, slatted base, or adjustable base.\nThe zippered design allows the inner comfort layer to be flipped to adjust feel and rotated or swapped as it wears.\nUse a mattress protector to help keep the surface clean.\n\nShipping, trial, and exchange details\nMade to order. Order processing typically takes 24 to 48 hours, followed by 3 to 6 business days of production before shipment.\nFree shipping is available in the continental United States. Additional shipping rates apply for Alaska, Hawaii, and Canada.\nOnce shipped, estimated doorstep delivery is 3 to 8 business days.\nIncludes a 365-night sleep trial when eligible under current Nest Bedding policy.\nLifetime Renewal Exchange is available when included with the current offer and policy terms.\n\nBest uses\nSleepers who want an all-foam mattress with strong contouring and motion isolation.\nCouples who want less motion transfer than many coil mattresses.\nShoppers who want a flippable internal foam layer to adjust firmness.\nSleepers who prefer a medium-to-firm surface with pressure relief.\nPeople who want a renewable mattress design with an exchangeable internal comfort layer.","brand":"Nest Bedding Mattress","offers":[{"title":"Twin \/ Medium","offer_id":40440621989969,"sku":"NESTAR-1110","price":1640.0,"currency_code":"USD","in_stock":true},{"title":"Twin XL \/ Medium","offer_id":40440622088273,"sku":"NESTAR-1120","price":1754.0,"currency_code":"USD","in_stock":true},{"title":"Split CK 1-side \/ Medium","offer_id":40440622186577,"sku":"NESTAR-1171","price":1862.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ Medium","offer_id":40440622284881,"sku":"NESTAR-1130","price":2321.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ Medium","offer_id":40440622415953,"sku":"NESTAR-1150","price":2829.0,"currency_code":"USD","in_stock":true},{"title":"King \/ Medium","offer_id":40440622514257,"sku":"NESTAR-1180","price":3173.0,"currency_code":"USD","in_stock":true},{"title":"Cal King \/ Medium","offer_id":40440622710865,"sku":"NESTAR-1170","price":3173.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/7582\/files\/starling_hero_straightened.webp?v=1783636590"}],"url":"https:\/\/www.nestbedding.com\/collections\/split-king-mattresses.oembed","provider":"Nest Bedding® ","version":"1.0","type":"link"}