Their motto for this product is "just like mommy's tummy." Funny but true. This crib was designed to grow with the baby. I think it's ingenious. I would think a tighter environment is more comfortable for a newborn, like Mommy's tummy. The crib grows, as baby grows. Even to their teen years, where this crib can be reconfigured into a day bed. Someone really thought this through. I think this is a great earth-friendly product. The crib is not discarded after the child outgrows it, but instead, it is converted into functional furniture.