while the sleep nest be nice and cozy , and nice to look at , there be a couple of thing about it that make I nervous . 1 : it off gas . the packaging it arrive in off gas a lot itself , so I imagine that the sleep nest absorb the plastic fume while it be sit in it . I wash the sleep nest once but it smell just as strongly . 2 : the arm hole be really large so the sleep nest have the potential to rise up and cover the baby 's face . I have no idea if this would happen or if it would matter for a older baby but my daughter move around a lot in she crib so after get a replacement from the company that have different packaging -lrb- and thus no off-gassing -rrb- , I still do not want to use the sleep nest . just a couple of thing to take into consideration !