Ya - I worked at a daycare where while some kids would sleep anywhere and on anything - those style were not 'enjoyed' by many of the kids ... we had even made 'covers' to try to hide the seems and still had a few of those 'princess and the pea' types who could feel the cracks and could not get comfortable as a result.

The centre ended up reinvesting in cots and putting those in the gym as 'safety mats' around climbers and for somersaults.