First off realize that in 6 months your daycare group will be very different ages and have different needs. In the case of your oldest, they may not be napping at all so that frees up a room. Also your age and numbers in care may totally change by May too.

Right now anyone under 2 has a packnplay upstairs in a family bedroom. The others all sleep in the same room (our diningroom converted to main floor play area). They are on mats except for the one 2 year old that is in transition and she still uses her packnplay since I can't trust her to stay put should she wake early. Thay all sleep for most of the two hour quiet time.