As I am a huge fan of Mumbaikar nikhil and I was thinking of getting a mattress for my work room .I decided to go for this mattress as Mumbaikar nikhil on his videos suggested that its a good mattress and there is 100 days refund policy.First the delivery took a lot of time .It took around 3 weeks to deliver then after a few days my back started hurting.Then I decided to contact flo for a refund but they just told me that sleep on it for a few weeks then your back will become familiar with the mattress but as of today I sold this mattress to my friend and I am sleeping on sleepwell matress.This was my experience with flo matress I suggest you to go for ortho instead of ergo.Thanka for reading.