College English Test Paper Band3 (Cloze) Passage One BADBC DACCA DCBAB ACDAC The usual recommendation for a bad back was to put a board under the mattress or buy a bed that¡¯s as hard as a board, and just as uncomfortable
However, sleep researchers recognize that 1 support comes from a surface that contours to your natural 2 with the right degree of 3 for correct skeletal support
Many so-called ¡°orthopaedic¡± beds have just ordinary coil springs made heavier and hard
The 4 and support is flat and 5 and unnatural
The spine is forced up but this 6 pressure points on the soft parts of the body which tend to 7 blood flow
So you toss and turn to 8 pressures and seek comfort
Sleep is 9
Slumberland experts have developed a spring form that is now 10 world wide
Instead of 11 coils it is