this was my first time buying a mattress online and the reviews were accurate. ive been having the best sleep of my life! it usually takes me ages to fall asleep, but with this mattress within seconds im knocked out and waking up feeling so well rested.
im a side sleeper but with this mattress i can sleep on my back with no problem. 
its medium firmness is perfect also! 
it rose fairly quickly and i was able to sleep on it when i got it in the mail.