Run an online search for JR Products 70445 push latch strike. It is the stouter-built of two strikes that'll work with the same latch. My drawer strikes are the smaller 70465 and several have broken, so I bought backup larger ones wherever my travels found them, often at RV dealerships. The screw holes don't perfectly match the existing ones in the wood where the smaller strikes were mounted, and the latch may have to be loosened and slid a smidge to one side or the other for optimum alignment, but I made them work okay. The strike for closets is usually the large one. If it broke, it could be from rough handling, or from a less than optimum alignment with the latch, which is easy enough to rectify with the adept use of a screwdriver while installing a new strike.
You can find essentially the same strike and latch under other mfrs.' names, but I'm not certain which models are the stouter large strikes, and without the two sizes in hand, they can be hard to tell apart. Commonly available is a 3-piece pack that includes a latch and 2 strikes, one small and one large. But since the latch itself has never broken for us, that option accumulates a lot of spare latches and is a waste of money.
Sorry, I'm not familiar with the bed latch. But you might check this manufacturer to maybe find a part number to look for at retailer sites:
http://www.jrproducts.net/index.php/catalog/load_product_list/Hardware/Cabinet%20Hardware/Joel
