I would just use a regular PNP. You don't need the bassinet part. My parents have one without the bassinet and my kids have always slept there when they stay with them.
This is what we do too. My parents have a PNP for us to use when we go to their house. PNPs are easily transported too. We always bring ours with us for overnight trips in hotels, etc. or most hotels have them free to use.