Bassinet Help Needed!

So we have twins who are now almost 8lbs each. We have been using the Fisher Price Snugapuppy Rock and Play Sleeper but now I'm second guessing myself! I'm hearing that it's not good for sleeping!!! It can cause flat spots and apparently it's not approved for actual sleeping! There's also a concern about the sleeper limiting movement which can cause issues for their muscles. Ughhh. They have a bit of reflux so the slight incline was helpful too. They only sleep in their cribs for 20 minutes at a time but will sleep in these sleepers up to 3hrs. So we need something else so that they can sleep in our room and that will hold up ton20/25 pounds so at least we get use out of if. Also we tried the twin Graco pack and play and they are now over the combined weight limit. Any bassinet suggestions???