Because sleep problems and back problems buy a lot of back and forth to test the mattress

Ikea sofa bed in the ordinary foam
vispring spring
Tempur memory foam mattress

Sealy's geltex a British brand of latex (latex engage two is a normal 100% natural Talalay latex is also a natural latex)

above mattresses have tried to select and weight firm, medium firm and medium hardness of different hardness about but because bad back and We need some hard bed

talk about the advantages and disadvantages (personal feelings only)
IKEA sofa bed
a section of foam advantages: relatively hard to sleep very comfortable inexpensive
shortcomings: persistence enough sleep easily collapse

vispring spring
Pros: I can not think
Cons: sleep is not a back pain neck pain under careful observation that although the work is very advanced, but very suitable for thin people bed too soft bed is too hard and easy back pain because of the weight is too light and neck lift even the addition of too much wool mattress cover will not short how are uncomfortable if two people sleeping in one bed is likely to affect the price of the other dead expensive

Tempur memory foam
advantages: the ability to shape the curve is very supportive with the body if two people do not sleep that is a lot of influence
drawback: heat which is recognized shortcomings heat dissipation poor flip when the body is easy to wake up

Sealy geltex
this brand is a five-star hotel with geltex known is not hot
advantages: ah did not
disadvantages: how not or uncomfortable heat

latex
advantages: very supportive sleep very comfortable not hot nor easily affect others
Cons: some people are allergic to latex

to sleep with the mattress also buy a variety of mattress cover and pillows the clerk said the mattress hardness selection according to body weight to choose soft light weight hard election but comfortable sleep is to rely on the top layer of wool mattress cover to adjust the material is better than I in

UK experience some Chinese words do not know how to translate accurately so directly in English I had bought back tried gone back and forth on the road six months
selected mattress through a lot of exploration is now using 100% natural talalay latex mattress with a Swiss brand of memory foam pillow

above is for reference but I think the experience of others is not necessarily accurate, no matter how authoritative still have to test yourself go