{"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":"2026-10-03T19:12:26+00:00","price":"19.99","retailer":"Amazon UK","source_kind":"offer_check","source_url":"https://www.amazon.co.uk/dp/B0DJPQTH3S?maas=maas_adg_api_581646868491216871_static_12_201&ref_=aa_maas&tag=maas&aa_campaignid=09bc873fb87714f860ce3bb600e3e949&aa_adgroupid=a6b2e020eb8ac76e7033709da6c1dd93_PBSEP_!!!affid!!!_118045_&aa_creativeid=c921vZUvVRrT5ydh_bMokl9T6YTlJbH66Ol3MlxWRRGm_azTY_c"}],"product":{"brand":"RUMMY AMZ","evidence_url":"https://www.mainbuyer.com/evidence/products/rummy-cervical-memory-foam-ergonomic-neck-pillow-removable-washable-pillowcase-for-orthopedic-sleeping-neck-pain-and-stomach-sleepers-grey-55x35x13cm-b0djpqth3s/prices","gtin":null,"id":16557,"model_number":null,"name":"RUMMY Cervical Memory Foam Ergonomic Neck Pillow Removable Washable pillowcase, for Orthopedic Sleeping Neck Pain and Stomach Sleepers(Grey,55x35x13cm","product_url":"https://www.mainbuyer.com/product/rummy-cervical-memory-foam-ergonomic-neck-pillow-removable-washable-pillowcase-for-orthopedic-sleeping-neck-pain-and-stomach-sleepers-grey-55x35x13cm-b0djpqth3s","urn":"MB-AWIN-GB-B0DJPQTH3S"},"summary":{"currency_code":"GBP","currency_symbol":"\u00a3","has_history":true,"historical_high":"19.99","historical_low":"19.99","last_observed_at":"2026-10-03T19:12:26+00:00","low_30d":"19.99","low_90d":"19.99","median_price":"19.99","observation_count":1,"priced_observation_count":1,"retailer_count":1,"span_days":0,"tracked_since":"2026-10-03T19:12:26+00:00"}}