How to get a number with as many bits random as possible in javascript?

Is there a simple way to get a random number (not integer) with over 60, optimally 64, random bits in javascript (including if there is a module that provides this easily)? I looked at random.js but they seem to only provide 53 random bits, since they give a random integer. I just want a random number (i.e. float) with as many bits random as possible.