We ordered this mattress because we wanted to have a mattress with no chink. 2 days after the order, the mattress was there. Vacuum-packed and genuinely a miracle, we unfold the mattress! Unfortunately, the mattress for us is much to hard !! I have 95 kg and my man 63 kg. For me, the mattress is to hard and I can only recommend hardness 2 to choose !! Who has a sensitive nose, we unfortunately can not be happy the first time with the mattress because it has a strong smell. We did not endured and after 10 days decided to send the mattress back, which was not a problem. Conclusion: definitely pay attention to the hardness and long, long vent!