I have always preferred to sleep on my side, but am a larger person, and have had difficulty finding something that could support my weight so I didn't sink too far into the mattress, while at the same time not putting excess pressure on my shoulders and hips or pushing me too far upwards.  The Wonderful mattress is the first mattress I sleep well on all night, my back seems supported, and I wake up without shoulder and hip pain.  Only have had it for 2 months but so far so good! 

- Tony P.