How is 'Sleepwell Support 1000' mattress?

You do know that this mattress is just latex foam (doesn't contain any memory foam)?

Sensemaya is correct when they say that the combination of pocket sprung and memory foam is best. Although make sure the mattress has memory foam on both sides so that you can turn it. This will prolong the life of the mattress.

The best place to find bargains on mattresses is on ebay.
I know that many people are very wary about buying items like beds from ebay. However if you follow a few guidelines then you can save up to 75% on the shop prices:

1) most important of all make sure that the seller gives a 100% satisfaction guarantee.

2) check previous feedback for the seller, and even contact previous customers to ask them about the seller.

3) use a company who display their phone number, so that you can talk to someone about your requirements (they want you to make the righ choice because it will cost them if you return it).

4) check the sellers return policy. Many sellers charge for postage on returns.....can work out very expensive if you have unpacked a vacuum packed mattress, and you don't like it.

5) try to use a seller who delivers using their own transport. Couriers often damage or misplace goods (believe me I know from experience).

Obviously you can't try before you buy, but for the saving it is worth the risk if you follow the guidelines above.