Quiet time bins, etc

Hey all! I will be the first to admit that quiet time has been slowly descending into "put the TV on for 2 hours". :( Under 3 still nap, and I have a 3 1/2 year old that naps like a champ, but when my other 3 year old is here she will not sleep. On rare occasions, she will lay down on the couch for an hour or so, but we have slipped into a routine of letting her and my daughter alternate which video we put on the DVD player.
I need some help! This is not what quiet time should be, if it was up to me.
So I have been gathering various activities that are calm and quiet, and putting them into what I will call the "Quiet Cupboard". My plan is to have them lay down for AT LEAST a half hour with no TV, etc. If they are sleepy, they should fall asleep then. When the half hour is done, they can do something in the Quiet Bin. I will rotate out the activities, so they are different each week.
But; do I put together a bin for each child? Do I let them all share the bin? The activities are all individual games and such, so as not to encourage "group" play.
I will have more children in the fall, and I would like to ensure that quiet time is just that. QUIET!!
Advice and suggestions?

I would set up the bins with an assortment of things that should take them through the entire time meaning no need to return to the cupboard. Number the bins and rotate them so they all get a turn with each bin over the course of the week. By having individual bins it encourages them to go find a place by themselves to play.

Another option is to set up stations in whatever room they are allowed to be in during quiet time and then they can move from centre to centre.

It depends on the kids themselves if they can play together or if they need alone spaces. Feltboard, magnetboards, a pocket chart and pieces can be quiet.

Another option is story kits where you would put a book to read and then things that go with the book and put each in a large zip bag. They get one bag to use during naptime - so a book, related finger puppets, matching game, lacing cards, etc.