Hello! Not sure if this has been asked before (I'm new to the board), but I'm wondering how many of you use a twin pack n' play. The only one I've been able to find is the Graco Kensington pack n' play on Amazon. It's a double, with two bassinets. Others have said they simply let both babies sleep in the bottom of a regular pack n' play. I'm just trying to figure out if the twin pack n' play is worth the $180. Thanks for your input!