I purchased these vitamins about 3 weeks ago and usually only take one at night time. It says you can take them 3 times a day but I also heard that they can make you drowsy and didn't want to run the risk of being tired and sleepy during the day.
I have found that I get a good night's sleep when taking the one tablet before bed and I don't get up to go to the bathroom as much during the night either (that's a big plus). There is a slight smell to the tablet but nothing bad or offensive. I am super sensitive to smells and this didn't bother me, so it must be alright!