I have the mats from Scholars Choice ~ the link above from Reggio. I also bought the sheets that go over them. They are AWESOME
-dont take up a lot of room
-clean sheet every nap time
-wipe clean easy
A friend who also runs a daycare has the cots that click together and loves them too. All preference I guess. I also have the sleep mats on rubber mats so they aren't on the floor and my kiddies are never cold- even in winter