{"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":"144.38","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0C28379JD?maas=maas_adg_api_589335864481531507_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PB5863fbda61f70d67c326a43701a450ef_d73b9d4ab8b1&aa_adgroupid=97500984a8d3eef39f394ed88aabd6b5_PBSEP_!!!affid!!!_118045_&aa_creativeid=1734PwRo_bbAtYOhEI3RmJbavPVH9TGMMoZvq4m6_bonuU4bg_c"}],"product":{"brand":"Inofia UK","evidence_url":"https://mainbuyer.com/evidence/products/inofia-double-mattresses-memory-foam-sprung-4ft6-10-3-inch-hybrid-mattress-b0c28379jd/prices","gtin":null,"id":19061,"model_number":null,"name":"Inofia Double Mattresses Memory Foam Sprung 4FT6, 10.3 Inch Hybrid Mattress","product_url":"https://mainbuyer.com/product/inofia-double-mattresses-memory-foam-sprung-4ft6-10-3-inch-hybrid-mattress-b0c28379jd","urn":"MB-AWIN-GB-B0C28379JD"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"144.38","historical_low":"144.38","last_observed_at":"2026-10-21T03:10:03+00:00","low_30d":"144.38","low_90d":"144.38","median_price":"144.38","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-21T03:10:03+00:00"}}