One code currently works at the Havnby store: THEGREENES, the public creator code from The Greenes Go Wild YouTube channel. It is not our code — TeslaCampingGuide earns nothing when you use it.
Works on the FlatCore Hybrid Support ($509, ranked #3 in our comparison) and the CloudCore Foam ($399). Verified working at havnby.com checkout on 3 August 2026.
Read the FlatCore reviewCloudCore reviewAdd your mattress to the basket at havnby.com, paste THEGREENES into the discount field at checkout, and confirm the 10% deduction shows before paying.
No. THEGREENES is the only Havnby code a brand channel actually publishes — aggregator listings for bigger percentages do not survive checkout. If it stops working, this page is updated first. All codes for every brand live on the verified codes page.