{"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":"2026-10-21T03:10:07+00:00","price":"189.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0H3KN92HR?maas=maas_adg_api_578502791986193560_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=PBa5fa7fbe28d3113da91ea3d824370217_6da282cd4c02&aa_adgroupid=44fdb24c6b7b9de1fed6b5095a942358_PBSEP_!!!affid!!!_118045_&aa_creativeid=e2b0HmihwGrlnZVh3o1PFCCiOUYJV84tQu0usukPCShOpNk_c"}],"product":{"brand":"Inofia UK","evidence_url":"https://mainbuyer.com/evidence/products/inofia-double-mattress-4ft6-memory-foam-mattress-b0h3kn92hr/prices","gtin":null,"id":19144,"model_number":null,"name":"Inofia Double Mattress 4FT6,Memory foam mattress","product_url":"https://mainbuyer.com/product/inofia-double-mattress-4ft6-memory-foam-mattress-b0h3kn92hr","urn":"MB-AWIN-GB-B0H3KN92HR"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"189.99","historical_low":"189.99","last_observed_at":"2026-10-21T03:10:07+00:00","low_30d":"189.99","low_90d":"189.99","median_price":"189.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-21T03:10:07+00:00"}}