Ok I got my incubator yesterday and it's been running for 24 hours now. I think it's quiet but hubby says it's driving him nuts. It's the hovabator 1588 and I hear a soft humm but that is it! lol Does anyone else thing theirs is noisy? Hubby wants to know that you all think? My son is deaf so he can't get in on the argument and then we have a 3 yr old who can care less! lol Those of you who have a 1588 let me know what you think