Memory Foam Double Mattress Only £69.99 at Amazon
Brilliant Amazon deal for a memory foam double mattress including FREE delivery.
£69.99 instead of £130. Really good if you've just moved house and need a new mattress or have sleep problems because of a bad back.
There's also quite a good deal here for a single memory foam mattress (weirdly more expensive than the double but loads of 5***** reviews)