Need a play yard

i think thats what its called...it has the sleeping part on top and the play pin at the bottom with the changing table. I want to get a good one, but I went on the babies r us website and was reading the comments on each one and I'm having a hard time choosing one. Some of them people have said they dip in the middle after a couple of weeks, and i really want the baby to be able to sleep in it for a while (it will be in my room). Please give me suggestions.

[blessed_mommy]

Graco usually carries a durable brand.  I swear by it.  

[cantwait4baby]

I have 4 of them - they all seem to dip in the middle when it is raised for the baby to sleep in.  Out of the 4 the Graco Pack 'n Play - Devon is the best - I use this for naps downstairs - it dips but not too bad but the dresser part is great - it is high and easy on your back.  I also have the Evenflo Baby Suite Select Play and this one dips pretty bad in the middle.  My daughter still sleeps in it because I have her in the positioner still so she cant roll.  She will be going into her crib next month and then I will just use this as the play pen.  The changing table on this is low - I dont use it - hurts my back.  The smaller pack n plays - the travel  ones are better too but dont last as long.