Memphis-based rock outfit Sleep Theory has officially upgraded all four of its UK venues for 2026 after tickets for their first-ever headline run reportedly sold out within 30 minutes of the initial on-sale.The entire batch of tickets for the February 2026 dates in Glasgow, Manchester, Birmingham, and London was sold out. Fans who missed out will now get another chance to catch the band live, as the shows have been moved to relatively larger venues due to demand.The upgraded UK shows will be the opening leg of Sleep Theory's upcoming UK and European headline tour. The band has confirmed that all original tickets will remain valid for the upgraded venues. During the run, support will come from The Pretty Wild. View this post on Instagram Instagram PostSleep Theory took to its official Instagram page to announce the venue upgrade. The post read:"Our UK shows sold out so fast we decided to upgrade these venues. All previously purchased tickets will be honored. Tickets on sale now at sleeptheoryofficial.com"Complete list of dates and venues for Sleep Theory's upcoming 2025-26 runOctober 2025Saturday, October 6, 2025, Los Angeles, CA, at The Regent TheaterSunday, October 7, 2025, San Diego, CA, at House of Blues San DiegoTuesday, October 9, 2025, Albuquerque, NM, at Revel Entertainment CenterWednesday, October 10, 2025, Lubbock, TX, at Jake’s BackroomThursday, October 11, 2025, Tulsa, OK, at VanguardFriday, October 12, 2025, Little Rock, AR, at The HalNovember-December 2025 (Canada Tour with Papa Roach)Tuesday, November 25, 2025, Vancouver, BC, at Rogers ArenaWednesday, November 26, 2025, Kelowna, BC, at Prospera PlaceFriday, November 28, 2025, Calgary, AB, at Scotiabank SaddledomeSaturday, November 29, 2025, Edmonton, AB, at Rogers PlaceMonday, December 1, 2025, Saskatoon, SK, at SaskTel CentreTuesday, December 2, 2025, Winnipeg, MB, at Canada Life CentreFriday, December 5, 2025, Toronto, ON, at Coca-Cola ColiseumSaturday, December 6, 2025, Kitchener, ON, at The AudMonday, December 8, 2025, Laval, QC, at Place BellWednesday, December 10, 2025, Halifax, NS, at Scotiabank CentreFriday, December 12, 2025, Everett, WA, at Angel of the Winds ArenaJanuary 2026Saturday, January 25 to Friday, January 31, 2026, Miami, FL, ShipRocked 2026Sleep Theory UK and European tour 2026February 2026Sunday, February 8, 2026, Glasgow, UK, at The Garage (upgraded from Oran Mor)Monday, February 9, 2026, Manchester, UK, at Academy 2 (upgraded from Academy 3)Wednesday, February 11, 2026, Birmingham, UK, at XOYO (upgraded from O2 Institute 2)Thursday, February 12, 2026, London, UK, at KOKO (upgraded from The Dome)Saturday, February 14, 2026, Amsterdam, Netherlands, at Melkweg OZSunday, February 15, 2026, Paris, France, at Nouveau CasinoMonday, February 16, 2026, Antwerp, Belgium, at ZappaWednesday, February 18, 2026, Hamburg, Germany, at LogoThursday, February 19, 2026, Berlin, Germany, at Hole 44Saturday, February 21, 2026, Warsaw, Poland, at HydrozagadkaSunday, February 22, 2026, Prague, Czech Republic, at Futurum Music BarMonday, February 23, 2026, Vienna, Austria, at FlexWednesday, February 25, 2026, Milan, Italy, at Slaughter ClubThursday, February 26, 2026, Zurich, Switzerland, at DynamoFriday, February 27, 2026, Munich, Germany, at TechnikumTickets for Sleep Theory's 2026 UK and EU tour are available now via the official band website. Select VIP packages are offering early entry and meet-and-greet options.Also Read: Snow Patrol 2026 UK and Ireland summer tour: Presale, dates, venues, and more explored