My previous mattress was hard and uncomfortable, always turning alot in the middle of the night. On top of that I have insomnia which made falling asleep even more difficult. After unboxing I waiting a few hours for it to rise to its original size, I think like 3 hours. Upon laying on it was really comfortable, even which sheets on it like I could still feel the top off the mattress. Going to sleep was great too, going from 1-2 hours it usually takes to fall asleep, went down to im guessing <35 min. Im not 100% sure exactly how long to took for me to fall asleep but it was much much faster than which my trash previous mattress. I just wished this mattess was softer since im 90% side sleeper, 10% stomach. Anyhow, huge improvement in sleep.