I have an unopened double (135x190cm) 10" memory foam mattress from Hypnia for sale. It is surplus to requirement from a client who doesn't need it anymore. It's still in vacuumed box so easy-ish to transport. Retails at £238.99, selling it on for £100.
Please note it comes without a cover but you can purchase one from the website for £54.99
Any questions, please ask! Pick up from the warehouse district.
Just texted you, Jane.