4 More Days Until Nash’s Closes in Columbia Heights – To be Replaced by a Sleepys mattress store? Prince Of Petworth February 23, 2012 at 4:30pm Back in Sept. 2011 we learned that Nash’s Sporting Goods was closing in the Tivoli at 3339 14th St, NW. Only four days left. And word on the street says that it will be replaced by a Sleepys mattress store. I’ll be sure to update if/when confirmed.