about 18000.00 pesos there are a couple of shops in sosua abajo and one on the right hand of charamicos going towards puerto plata - the shop has a few chests of drawers outside but is huge inside- becareful of the steps inside with no bannisters and a shear drop
You might consider DG in POP, they have a few. Be careful as we discovered there does not seem to be a standard size. In other words. A queen size matress comes in different sizes. Measure it before you purchase it so at least the sheets will fit properly. If you buy the matress with the bew frame you can easly see how the matress fits the frame.
You can get a queen size mattress and wooden base in Sosua Abajo, for approx. 10,000 pesos, at the last furniture store on your left, as you are heading West (towards POP), just before the entrance to La Maranatha/Bella Vista.
There are 2 DG stores in POP. They are 1 block from each other on the same street. From Sosua, keep straight at the roundabout just past the Berger King. If you know where the Post oiffice is in POP you need to turn left at the interesction one block BEFORE the stop light at the post office intersection, sorry, don't know the street names. Once you turn left, then turn right at the next street and look for a parking spot. The first DG store with beds is on the next corner. The other DG might have beds, not sure, again that is one block from this store. Sorry about no street names.