After I my friend the water cushion (usually in vain) have stibizt because I just loved it so to be on, I have now decided to buy himself a water cushion. I can only say this is the best thing you can use to sleep. Due to the short length of 40 cm is lying with his head on his shoulders perfectly and are just. Unlike as with my 80x80 cm pillow, in which I had often abgenknickt shoulders forward and did not sleep well. It is like being on a "cloud" on the water cushion. May it not give up :) The water content can be varied but I recommend about 1 1/2 to 2 liters, which fits very well to sleep.
