This question arose from an application of the virial theorem that showed how Bose-Einstein condensates of astrophysical dimension could arise from condensing clouds of normal phase bosons. If these clouds consisted of the reservoirs of suspected dark matter at the super-cluster size scale, and a boson gas is the origin of the dark matter, then the boson mass would be about 1 ev.
Since this would be the mass of the super-symmetric boson partner of a neutrino, it seems that dark matter would be a BE condensate consisting of sneutrinos. However, given the mass of objections that can be raised against any proposal of the standard flavor sneutrinos, it seemed that the sterile particles would fit the bill.
But since the sterile sneutrino would be much heavier than its partner due to the SUSY breaking needed to explain the failure to detect super-symmetric partners of the known particles at the LHC, it does not provide a viable candidate.
There is, however, an almost obvious solution to this problem--one that would, for a Wess-Zumino model, imply that there are only four super-symmetric particles and that the putative SUSY partners of the familiar particles simply don't exist.