{"dataset":"MainBuyer UK price observations","market":"GB","market_name":"United Kingdom","methodology":"Each observation is stored only when MainBuyer has a timestamped checked retailer offer. Missing days are not interpolated or invented. Historical low, high and median figures use recorded in-stock observations only.","observations":[{"currency":"GBP","in_stock":true,"observed_at":"2026-10-21T03:10:03+00:00","price":"195.49","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0C283HYGW?maas=maas_adg_api_589335864481531507_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB5863fbda61f70d67c326a43701a450ef_d73b9d4ab8b1&aa_adgroupid=1c9a33dfc7ea381fc10330c1b2626d83_PBSEP_!!!affid!!!_118045_&aa_creativeid=df45tAXmHY9_af12BJjwsPHASbuSA0rtm8VOD8o6W1v_a534M_c"}],"product":{"brand":"Inofia UK","evidence_url":"https://mainbuyer.com/evidence/products/inofia-king-mattresses-memory-foam-sprung-5ft-10-3-inch-hybrid-mattress-b0c283hygw/prices","gtin":null,"id":19062,"model_number":null,"name":"Inofia King Mattresses Memory Foam Sprung 5FT, 10.3 Inch Hybrid Mattress","product_url":"https://mainbuyer.com/product/inofia-king-mattresses-memory-foam-sprung-5ft-10-3-inch-hybrid-mattress-b0c283hygw","urn":"MB-AWIN-GB-B0C283HYGW"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"195.49","historical_low":"195.49","last_observed_at":"2026-10-21T03:10:03+00:00","low_30d":"195.49","low_90d":"195.49","median_price":"195.49","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-21T03:10:03+00:00"}}