Evelyn seems to believe that napping is for the weak and unoccupied. She may have a point. Currently she is the focus of all attention. Especially when she is within reaching distance of her siblings. Joelle is the little mommy while the boys love to find toys that might entertain her.
Joelle is the "nap alert". She will wait until mommy's eyes close completely until she, with all the subtlety of squealing brakes, shrieks "MOMMY!" Then of course everyone wakes up, Evelyn, the cat, the neighbors, the old neighbor dog, sleeping astronauts on the space station and anyone else within ear shot. Joelle is the "Naphililator" [Nap-hi-ill-lay-tor].
The boys have another approach that is probably the part of human nature that draws men to watch wrestling on TV.