um it has been done but the people who have done it have reported nasty comedowns and delayed depression.i personally have done a day, a night and another day in a row and the comedown off that lasted over a week. but we were doing a dose in excess of 200mg. i doubt you'd even feel 10mg. i only start to get any visuals at about 50mg (instead of just overly uncomfortable body rushes and headache inducing wall breathign). and some people are able to sleep, some not