The longest I have had to stay up to finish a quilt was two years ago when I was still working; I stayed up three days and two nights. Went to work, sewed all night, went to work,sewed all night and all next day. I was so obsessed with meeting the deadline that I didn't allow myself to fall asleep while sewing OR at work!! I wouldn't suggest anyone making a bad habit of that. It's ridiculous and bad for your health!!